Merge 8.7

155 files changed, 346 insertions, 346 deletions

diff --git a/tests/aaa_exit.test b/tests/aaa_exit.test
index d4d2a7c..fffc1cc 100644
--- a/tests/aaa_exit.test
+++ b/tests/aaa_exit.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/all.tcl b/tests/all.tcl
index c72334a..d2acbec 100644
--- a/tests/all.tcl
+++ b/tests/all.tcl
@@ -4,8 +4,8 @@
 # tests.  Execute it by invoking "source all.tcl" when running tcltest
 # in this directory.
 #
-# Copyright (c) 1998-1999 by Scriptics Corporation.
-# Copyright (c) 2000 by Ajuba Solutions
+# Copyright © 1998-1999 Scriptics Corporation.
+# Copyright © 2000 Ajuba Solutions
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/append.test b/tests/append.test
index 0b06c8f..a174615 100644
--- a/tests/append.test
+++ b/tests/append.test
@@ -4,9 +4,9 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/appendComp.test b/tests/appendComp.test
index a6e78d2..66f2a5c 100644
--- a/tests/appendComp.test
+++ b/tests/appendComp.test
@@ -4,9 +4,9 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/apply.test b/tests/apply.test
index 8696245..e2be172 100644
--- a/tests/apply.test
+++ b/tests/apply.test
@@ -4,10 +4,10 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
-# Copyright (c) 2005-2006 Miguel Sofer
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
+# Copyright © 2005-2006 Miguel Sofer
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/assemble.test b/tests/assemble.test
index d417d4b..d4e44f8 100644
--- a/tests/assemble.test
+++ b/tests/assemble.test
@@ -2,8 +2,8 @@
 #
 #	Test suite for the 'tcl::unsupported::assemble' command
 #
-# Copyright (c) 2010 by Ozgur Dogan Ugurlu.
-# Copyright (c) 2010 by Kevin B. Kenny.
+# Copyright © 2010 Ozgur Dogan Ugurlu.
+# Copyright © 2010 Kevin B. Kenny.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/assocd.test b/tests/assocd.test
index 7d89daa..9e9b8c6 100644
--- a/tests/assocd.test
+++ b/tests/assocd.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1994 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1994 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/async.test b/tests/async.test
index f57063f..2a40ae9 100644
--- a/tests/async.test
+++ b/tests/async.test
@@ -4,9 +4,9 @@
 # library procedures.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/autoMkindex.test b/tests/autoMkindex.test
index 831de19..214a969 100644
--- a/tests/autoMkindex.test
+++ b/tests/autoMkindex.test
@@ -3,8 +3,8 @@
 # This file contains tests related to autoloading and generating the
 # autoloading index.
 #
-# Copyright (c) 1998  Lucent Technologies, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1998  Lucent Technologies, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -32,7 +32,7 @@ makeFile {# Test file for:
 # Note that procedures and itcl class definitions can be nested inside of
 # namespaces.
 #
-# Copyright (c) 1993-1998  Lucent Technologies, Inc.
+# Copyright © 1993-1998  Lucent Technologies, Inc.
 
 # This shouldn't cause any problems
 namespace import -force blt::*
diff --git a/tests/basic.test b/tests/basic.test
index 1711094..e4e31e2 100644
--- a/tests/basic.test
+++ b/tests/basic.test
@@ -9,8 +9,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for
 # errors. No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/binary.test b/tests/binary.test
index 7433fe8..8b326d4 100644
--- a/tests/binary.test
+++ b/tests/binary.test
@@ -4,8 +4,8 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1997 by Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/chan.test b/tests/chan.test
index 5d05935..3e65433 100644
--- a/tests/chan.test
+++ b/tests/chan.test
@@ -2,7 +2,7 @@
 # command. Sourcing this file into Tcl runs the tests and generates
 # output for errors. No output means no errors were found.
 #
-# Copyright (c) 2005 Donal K. Fellows
+# Copyright © 2005 Donal K. Fellows
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/chanio.test b/tests/chanio.test
index 434300b..dd45381 100644
--- a/tests/chanio.test
+++ b/tests/chanio.test
@@ -6,9 +6,9 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1991-1994 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1994 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/clock.test b/tests/clock.test
index bb72878..4283020 100644
--- a/tests/clock.test
+++ b/tests/clock.test
@@ -6,7 +6,7 @@
 # built-in commands. Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 2004 by Kevin B. Kenny.  All rights reserved.
+# Copyright © 2004 Kevin B. Kenny.  All rights reserved.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/cmdAH.test b/tests/cmdAH.test
index 0d3fed5..acd05bc 100644
--- a/tests/cmdAH.test
+++ b/tests/cmdAH.test
@@ -4,8 +4,8 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1996-1998 by Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1996-1998 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/cmdIL.test b/tests/cmdIL.test
index 0b118f8..5f43aec 100644
--- a/tests/cmdIL.test
+++ b/tests/cmdIL.test
@@ -2,8 +2,8 @@
 # tclCmdIL.c. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/cmdInfo.test b/tests/cmdInfo.test
index e690002..57072e6 100644
--- a/tests/cmdInfo.test
+++ b/tests/cmdInfo.test
@@ -6,9 +6,9 @@
 # and generates output for errors.  No output means no errors were
 # found.
 #
-# Copyright (c) 1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/cmdMZ.test b/tests/cmdMZ.test
index 0675a5d..8977cbf 100644
--- a/tests/cmdMZ.test
+++ b/tests/cmdMZ.test
@@ -4,9 +4,9 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/compExpr-old.test b/tests/compExpr-old.test
index 6f43bc2..a13421b 100644
--- a/tests/compExpr-old.test
+++ b/tests/compExpr-old.test
@@ -6,8 +6,8 @@
 # "compExpr.test". Sourcing this file into Tcl runs the tests and generates
 # output for errors. No output means no errors were found.
 #
-# Copyright (c) 1996-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1996-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/compExpr.test b/tests/compExpr.test
index 4bcddcf..84c53de 100644
--- a/tests/compExpr.test
+++ b/tests/compExpr.test
@@ -2,8 +2,8 @@
 # tclCompExpr.c.  Sourcing this file into Tcl runs the tests and generates
 # output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/compile.test b/tests/compile.test
index 8d10e0a..67e413d 100644
--- a/tests/compile.test
+++ b/tests/compile.test
@@ -5,8 +5,8 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1997 by Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/concat.test b/tests/concat.test
index 8ff5500..976591e 100644
--- a/tests/concat.test
+++ b/tests/concat.test
@@ -4,9 +4,9 @@
 # commands.  Sourcing this file into Tcl runs the tests and generates output
 # for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/config.test b/tests/config.test
index b78e29d..f87250a 100644
--- a/tests/config.test
+++ b/tests/config.test
@@ -5,9 +5,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/coroutine.test b/tests/coroutine.test
index 6d79fd7..c7688b2 100644
--- a/tests/coroutine.test
+++ b/tests/coroutine.test
@@ -4,7 +4,7 @@
 # found in ::tcl::unsupported. The tests will migrate to normal test files
 # if/when the commands find their way into the core.
 #
-# Copyright (c) 2008 by Miguel Sofer.
+# Copyright © 2008 Miguel Sofer.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/dcall.test b/tests/dcall.test
index 7d86135..17d0d69 100644
--- a/tests/dcall.test
+++ b/tests/dcall.test
@@ -4,9 +4,9 @@
 # Sourcing this file into Tcl runs the tests and generates output for
 # errors.  No output means no errors were found.
 #
-# Copyright (c) 1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/dict.test b/tests/dict.test
index 01e4bde..d67f703 100644
--- a/tests/dict.test
+++ b/tests/dict.test
@@ -5,7 +5,7 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors.  No output means no errors were found.
 #
-# Copyright (c) 2003-2009 Donal K. Fellows
+# Copyright © 2003-2009 Donal K. Fellows
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
diff --git a/tests/dstring.test b/tests/dstring.test
index 8a24ebe..24b2a96 100644
--- a/tests/dstring.test
+++ b/tests/dstring.test
@@ -4,9 +4,9 @@
 # procedures. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/encoding.test b/tests/encoding.test
index d89d8a3..2083359 100644
--- a/tests/encoding.test
+++ b/tests/encoding.test
@@ -2,8 +2,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/env.test b/tests/env.test
index c901148..766ea4a 100644
--- a/tests/env.test
+++ b/tests/env.test
@@ -4,9 +4,9 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/error.test b/tests/error.test
index a111c80..064edc7 100644
--- a/tests/error.test
+++ b/tests/error.test
@@ -4,9 +4,9 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/eval.test b/tests/eval.test
index d473fdf..5ffe309 100644
--- a/tests/eval.test
+++ b/tests/eval.test
@@ -4,9 +4,9 @@
 # commands.  Sourcing this file into Tcl runs the tests and generates output
 # for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/event.test b/tests/event.test
index 3194547..d6c6041 100644
--- a/tests/event.test
+++ b/tests/event.test
@@ -3,8 +3,8 @@
 # this file into Tcl runs the tests and generates output for errors.  No
 # output means no errors were found.
 #
-# Copyright (c) 1995-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/exec.test b/tests/exec.test
index 84cfc17..3e616ac 100644
--- a/tests/exec.test
+++ b/tests/exec.test
@@ -4,9 +4,9 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1991-1994 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1994 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/execute.test b/tests/execute.test
index c7c6e79..efb208f 100644
--- a/tests/execute.test
+++ b/tests/execute.test
@@ -8,8 +8,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/expr-old.test b/tests/expr-old.test
index 923bb74..4d88c74 100644
--- a/tests/expr-old.test
+++ b/tests/expr-old.test
@@ -6,9 +6,9 @@
 # "compExpr.test". Sourcing this file into Tcl runs the tests and generates
 # output for errors. No output means no errors were found.
 #
-# Copyright (c) 1991-1994 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-2000 by Scriptics Corporation.
+# Copyright © 1991-1994 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1998-2000 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/expr.test b/tests/expr.test
index d3d4127..a33d2b8 100644
--- a/tests/expr.test
+++ b/tests/expr.test
@@ -4,8 +4,8 @@
 # built-in commands. Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1996-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-2000 by Scriptics Corporation.
+# Copyright © 1996-1997 Sun Microsystems, Inc.
+# Copyright © 1998-2000 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/fCmd.test b/tests/fCmd.test
index b4383db..619b6b1 100644
--- a/tests/fCmd.test
+++ b/tests/fCmd.test
@@ -4,8 +4,8 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1996-1997 Sun Microsystems, Inc.
-# Copyright (c) 1999 by Scriptics Corporation.
+# Copyright © 1996-1997 Sun Microsystems, Inc.
+# Copyright © 1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/fileName.test b/tests/fileName.test
index 0525ec5..14d7a3b 100644
--- a/tests/fileName.test
+++ b/tests/fileName.test
@@ -4,8 +4,8 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1995-1996 Sun Microsystems, Inc.
-# Copyright (c) 1999 by Scriptics Corporation.
+# Copyright © 1995-1996 Sun Microsystems, Inc.
+# Copyright © 1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/fileSystem.test b/tests/fileSystem.test
index a7a22ff..a546564 100644
--- a/tests/fileSystem.test
+++ b/tests/fileSystem.test
@@ -4,7 +4,7 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 2002 Vincent Darley.
+# Copyright © 2002 Vincent Darley.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/fileSystemEncoding.test b/tests/fileSystemEncoding.test
index 6561bef..848b570 100644
--- a/tests/fileSystemEncoding.test
+++ b/tests/fileSystemEncoding.test
@@ -1,6 +1,6 @@
 #!  /usr/bin/env tclsh
 
-# Copyright (c) 2019 Poor Yorick
+# Copyright © 2019 Poor Yorick
 
 if {[string equal $::tcl_platform(os) "Windows NT"]} {
     return
diff --git a/tests/for-old.test b/tests/for-old.test
index baf40fa..f5d1de9 100644
--- a/tests/for-old.test
+++ b/tests/for-old.test
@@ -6,8 +6,8 @@
 # into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/for.test b/tests/for.test
index a13ee54..8284a09 100644
--- a/tests/for.test
+++ b/tests/for.test
@@ -4,7 +4,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1996 Sun Microsystems, Inc.
+# Copyright © 1996 Sun Microsystems, Inc.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/foreach.test b/tests/foreach.test
index cdbfc85..85dc3da 100644
--- a/tests/foreach.test
+++ b/tests/foreach.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/format.test b/tests/format.test
index 287d70a..4e1b8da 100644
--- a/tests/format.test
+++ b/tests/format.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1994 The Regents of the University of California.
-# Copyright (c) 1994-1998 Sun Microsystems, Inc.
+# Copyright © 1991-1994 The Regents of the University of California.
+# Copyright © 1994-1998 Sun Microsystems, Inc.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/get.test b/tests/get.test
index 54169c2..58264ba 100644
--- a/tests/get.test
+++ b/tests/get.test
@@ -4,8 +4,8 @@
 # file tclGet.c.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1995-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/history.test b/tests/history.test
index 813f84f..557c856 100644
--- a/tests/history.test
+++ b/tests/history.test
@@ -4,9 +4,9 @@
 # commands.  Sourcing this file into Tcl runs the tests and generates output
 # for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/http.test b/tests/http.test
index 8ed7101..4a07789 100644
--- a/tests/http.test
+++ b/tests/http.test
@@ -4,9 +4,9 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-2000 by Ajuba Solutions.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-2000 Ajuba Solutions.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/httpcookie.test b/tests/httpcookie.test
index 38a18bb..329330d 100644
--- a/tests/httpcookie.test
+++ b/tests/httpcookie.test
@@ -4,7 +4,7 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 2014 Donal K. Fellows.
+# Copyright © 2014 Donal K. Fellows.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/httpd b/tests/httpd
index 982f3b8..37343aa 100644
--- a/tests/httpd
+++ b/tests/httpd
@@ -2,8 +2,8 @@
 #
 # The httpd_ procedures implement a stub http server.
 #
-# Copyright (c) 1997-1998 Sun Microsystems, Inc.
-# Copyright (c) 1999-2000 Scriptics Corporation
+# Copyright © 1997-1998 Sun Microsystems, Inc.
+# Copyright © 1999-2000 Scriptics Corporation
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/if-old.test b/tests/if-old.test
index e537fea..378c8a6 100644
--- a/tests/if-old.test
+++ b/tests/if-old.test
@@ -6,9 +6,9 @@
 # into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/if.test b/tests/if.test
index e589351..c5babdd 100644
--- a/tests/if.test
+++ b/tests/if.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/incr-old.test b/tests/incr-old.test
index 5d792e1..818bccc 100644
--- a/tests/incr-old.test
+++ b/tests/incr-old.test
@@ -6,9 +6,9 @@
 # into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/incr.test b/tests/incr.test
index 9d92f85..04c3652 100644
--- a/tests/incr.test
+++ b/tests/incr.test
@@ -4,8 +4,8 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/indexObj.test b/tests/indexObj.test
index 079eb52..cb4c631 100644
--- a/tests/indexObj.test
+++ b/tests/indexObj.test
@@ -2,8 +2,8 @@
 # tkIndexObj.c, which implement indexed table lookups.  The tests here are
 # organized in the standard fashion for Tcl tests.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/info.test b/tests/info.test
index e0ebda34..07b71e7 100644
--- a/tests/info.test
+++ b/tests/info.test
@@ -5,10 +5,10 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1994 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
-# Copyright (c) 2006      ActiveState
+# Copyright © 1991-1994 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
+# Copyright © 2006 ActiveState
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/init.test b/tests/init.test
index a607ff0..0074625 100644
--- a/tests/init.test
+++ b/tests/init.test
@@ -4,8 +4,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/internals.tcl b/tests/internals.tcl
index e859afe..ff6c42b 100644
--- a/tests/internals.tcl
+++ b/tests/internals.tcl
@@ -4,7 +4,7 @@
 #
 #   source [file join [file dirname [info script]] internals.tcl]
 #
-# Copyright (c) 2020 Sergey G. Brester (sebres).
+# Copyright © 2020 Sergey G. Brester (sebres).
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/interp.test b/tests/interp.test
index 6ffa098..5838059 100644
--- a/tests/interp.test
+++ b/tests/interp.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1995-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/io.test b/tests/io.test
index a70c747..4db1d33 100644
--- a/tests/io.test
+++ b/tests/io.test
@@ -6,9 +6,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1994 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1994 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/ioCmd.test b/tests/ioCmd.test
index 749d225..cd62b4d 100644
--- a/tests/ioCmd.test
+++ b/tests/ioCmd.test
@@ -6,9 +6,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1994 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1994 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/ioTrans.test b/tests/ioTrans.test
index f185117..1d5988f 100644
--- a/tests/ioTrans.test
+++ b/tests/ioTrans.test
@@ -5,7 +5,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 2007 Andreas Kupries <andreask@activestate.com>
+# Copyright © 2007 Andreas Kupries <andreask@activestate.com>
 #                                    <akupries@shaw.ca>
 #
 # See the file "license.terms" for information on usage and redistribution
diff --git a/tests/iogt.test b/tests/iogt.test
index fb04b5b..4db1152 100644
--- a/tests/iogt.test
+++ b/tests/iogt.test
@@ -6,8 +6,8 @@
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #
-# Copyright (c) 2000 Ajuba Solutions.
-# Copyright (c) 2000 Andreas Kupries.
+# Copyright © 2000 Ajuba Solutions.
+# Copyright © 2000 Andreas Kupries.
 # All rights reserved.
 
 if {"::tcltest" ni [namespace children]} {
diff --git a/tests/join.test b/tests/join.test
index 9ea554d..3573fbd 100644
--- a/tests/join.test
+++ b/tests/join.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/lindex.test b/tests/lindex.test
index 32a30b2..e06556f 100644
--- a/tests/lindex.test
+++ b/tests/lindex.test
@@ -4,10 +4,10 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
-# Copyright (c) 2001 by Kevin B. Kenny.  All rights reserved.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
+# Copyright © 2001 Kevin B. Kenny.  All rights reserved.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/link.test b/tests/link.test
index 89e5aa2..01fb0b4 100644
--- a/tests/link.test
+++ b/tests/link.test
@@ -4,9 +4,9 @@
 # procedures. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/linsert.test b/tests/linsert.test
index ddc56a9..16ade39 100644
--- a/tests/linsert.test
+++ b/tests/linsert.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/list.test b/tests/list.test
index 864fad0..4cd3a75 100644
--- a/tests/list.test
+++ b/tests/list.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/listObj.test b/tests/listObj.test
index ce6c978..6b34f23 100644
--- a/tests/listObj.test
+++ b/tests/listObj.test
@@ -5,8 +5,8 @@
 # built-in commands. Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1995-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/llength.test b/tests/llength.test
index a2770c0..1122341 100644
--- a/tests/llength.test
+++ b/tests/llength.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/lmap.test b/tests/lmap.test
index 3b52c64..7a802a8 100644
--- a/tests/lmap.test
+++ b/tests/lmap.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 2011 Trevor Davel
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 2011 Trevor Davel
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/load.test b/tests/load.test
index c79ddf4..7dcbfff 100644
--- a/tests/load.test
+++ b/tests/load.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1995 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/lpop.test b/tests/lpop.test
index 35f0103..272c82f 100644
--- a/tests/lpop.test
+++ b/tests/lpop.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/lrange.test b/tests/lrange.test
index a20422f..3bd94e5 100644
--- a/tests/lrange.test
+++ b/tests/lrange.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/lrepeat.test b/tests/lrepeat.test
index f62f35f..c1c8b02 100644
--- a/tests/lrepeat.test
+++ b/tests/lrepeat.test
@@ -4,7 +4,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 2003 by Simon Geard.
+# Copyright © 2003 Simon Geard.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/lreplace.test b/tests/lreplace.test
index 0b3f7f1..0b26e86 100644
--- a/tests/lreplace.test
+++ b/tests/lreplace.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/lsearch.test b/tests/lsearch.test
index d6ccf99..06f3ae4 100644
--- a/tests/lsearch.test
+++ b/tests/lsearch.test
@@ -4,9 +4,9 @@
 # commands.  Sourcing this file into Tcl runs the tests and generates output
 # for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/lset.test b/tests/lset.test
index d98a38e..b759b55 100644
--- a/tests/lset.test
+++ b/tests/lset.test
@@ -6,7 +6,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 2001 by Kevin B. Kenny.  All rights reserved.
+# Copyright © 2001 Kevin B. Kenny.  All rights reserved.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/lsetComp.test b/tests/lsetComp.test
index d313bbc..a719fe4 100644
--- a/tests/lsetComp.test
+++ b/tests/lsetComp.test
@@ -6,7 +6,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 2001 by Kevin B. Kenny.  All rights reserved.
+# Copyright © 2001 Kevin B. Kenny.  All rights reserved.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/macOSXFCmd.test b/tests/macOSXFCmd.test
index 0a147f0..5a62a2a 100644
--- a/tests/macOSXFCmd.test
+++ b/tests/macOSXFCmd.test
@@ -4,7 +4,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 2003 Tcl Core Team.
+# Copyright © 2003 Tcl Core Team.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/macOSXLoad.test b/tests/macOSXLoad.test
index ea4a910..df35b8d 100644
--- a/tests/macOSXLoad.test
+++ b/tests/macOSXLoad.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1995 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/mathop.test b/tests/mathop.test
index 3393247..6b56c8b 100644
--- a/tests/mathop.test
+++ b/tests/mathop.test
@@ -4,8 +4,8 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 2006 Donal K. Fellows
-# Copyright (c) 2006 Peter Spjuth
+# Copyright © 2006 Donal K. Fellows
+# Copyright © 2006 Peter Spjuth
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/misc.test b/tests/misc.test
index 8f8516e..421e125 100644
--- a/tests/misc.test
+++ b/tests/misc.test
@@ -5,9 +5,9 @@
 # tests are pathological cases that caused bugs in earlier Tcl
 # releases.
 #
-# Copyright (c) 1992-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1992-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/msgcat.test b/tests/msgcat.test
index 6e95c03..4549cee 100644
--- a/tests/msgcat.test
+++ b/tests/msgcat.test
@@ -2,8 +2,8 @@
 # Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1998 Mark Harrison.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1998 Mark Harrison.
+# Copyright © 1998-1999 Scriptics Corporation.
 # Contributions from Don Porter, NIST, 2002.  (not subject to US copyright)
 #
 # See the file "license.terms" for information on usage and redistribution
diff --git a/tests/namespace-old.test b/tests/namespace-old.test
index 760ae6e..bf73e87 100644
--- a/tests/namespace-old.test
+++ b/tests/namespace-old.test
@@ -7,9 +7,9 @@
 # Sourcing this file into Tcl runs the tests and generates output for
 # errors. No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1997 Lucent Technologies
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1997 Lucent Technologies
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/namespace.test b/tests/namespace.test
index 23e6095..8194559 100644
--- a/tests/namespace.test
+++ b/tests/namespace.test
@@ -6,8 +6,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-2000 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-2000 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/notify.test b/tests/notify.test
index 7375f83..d3ba0c8 100644
--- a/tests/notify.test
+++ b/tests/notify.test
@@ -8,7 +8,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 2003 by Kevin B. Kenny.  All rights reserved.
+# Copyright © 2003 Kevin B. Kenny.  All rights reserved.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/nre.test b/tests/nre.test
index 7cf06d1..6cc9a47 100644
--- a/tests/nre.test
+++ b/tests/nre.test
@@ -4,7 +4,7 @@
 # avoids recursive calls to TEBC. Only the NRE behaviour is tested here, the
 # actual command functionality is tested in the specific test file.
 #
-# Copyright (c) 2008 by Miguel Sofer.
+# Copyright © 2008 Miguel Sofer.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/obj.test b/tests/obj.test
index e10cebf..48c33ed 100644
--- a/tests/obj.test
+++ b/tests/obj.test
@@ -5,8 +5,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for
 # errors. No output means no errors were found.
 #
-# Copyright (c) 1995-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/oo.test b/tests/oo.test
index b8ae30d..8a8cce9 100644
--- a/tests/oo.test
+++ b/tests/oo.test
@@ -2,7 +2,7 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 2006-2013 Donal K. Fellows
+# Copyright © 2006-2013 Donal K. Fellows
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/ooNext2.test b/tests/ooNext2.test
index 0ec7cdd..b185c0f 100644
--- a/tests/ooNext2.test
+++ b/tests/ooNext2.test
@@ -2,7 +2,7 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 2006-2011 Donal K. Fellows
+# Copyright © 2006-2011 Donal K. Fellows
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/ooUtil.test b/tests/ooUtil.test
index 7fc9b9c..faf4098 100644
--- a/tests/ooUtil.test
+++ b/tests/ooUtil.test
@@ -3,8 +3,8 @@
 # the tests and generates output for errors. No output means no errors were
 # found.
 #
-# Copyright (c) 2014-2016 Andreas Kupries
-# Copyright (c) 2018 Donal K. Fellows
+# Copyright © 2014-2016 Andreas Kupries
+# Copyright © 2018 Donal K. Fellows
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/opt.test b/tests/opt.test
index 419e6bf..2d304c6 100644
--- a/tests/opt.test
+++ b/tests/opt.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/package.test b/tests/package.test
index 1223d82..b50a283 100644
--- a/tests/package.test
+++ b/tests/package.test
@@ -5,9 +5,9 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1995-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
-# Copyright (c) 2011 Donal K. Fellows
+# Copyright © 1995-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
+# Copyright © 2011 Donal K. Fellows
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/parse.test b/tests/parse.test
index 8f6ec49..173e65b 100644
--- a/tests/parse.test
+++ b/tests/parse.test
@@ -2,8 +2,8 @@
 # file tclParse.c.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/parseExpr.test b/tests/parseExpr.test
index 735dace..44a1371 100644
--- a/tests/parseExpr.test
+++ b/tests/parseExpr.test
@@ -2,8 +2,8 @@
 # file tclCompExpr.c.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/parseOld.test b/tests/parseOld.test
index 7218092..7985135 100644
--- a/tests/parseOld.test
+++ b/tests/parseOld.test
@@ -6,9 +6,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/pid.test b/tests/pid.test
index 47f753b..3f62457 100644
--- a/tests/pid.test
+++ b/tests/pid.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1995 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1995 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/pkgMkIndex.test b/tests/pkgMkIndex.test
index ad328f8..1205d6a 100644
--- a/tests/pkgMkIndex.test
+++ b/tests/pkgMkIndex.test
@@ -5,7 +5,7 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1998-1999 Scriptics Corporation.
 # All rights reserved.
 
 if {"::tcltest" ni [namespace children]} {
diff --git a/tests/platform.test b/tests/platform.test
index fff16fd..bf60c64 100644
--- a/tests/platform.test
+++ b/tests/platform.test
@@ -4,7 +4,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1999 by Scriptics Corporation
+# Copyright © 1999 Scriptics Corporation
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/proc-old.test b/tests/proc-old.test
index a92c6ab..ab93fca 100644
--- a/tests/proc-old.test
+++ b/tests/proc-old.test
@@ -7,9 +7,9 @@
 # Sourcing this file into Tcl runs the tests and generates output for
 # errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/proc.test b/tests/proc.test
index 4b539c4..97161b3 100644
--- a/tests/proc.test
+++ b/tests/proc.test
@@ -7,8 +7,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/process.test b/tests/process.test
index d7f47b2..4533108 100644
--- a/tests/process.test
+++ b/tests/process.test
@@ -4,7 +4,7 @@
 # Sourcing this file into Tcl runs the tests and generates output for
 # errors.  No output means no errors were found.
 #
-# Copyright (c) 2017 Frederic Bonnet
+# Copyright © 2017 Frederic Bonnet
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
diff --git a/tests/pwd.test b/tests/pwd.test
index 3d4cffd..c069eef 100644
--- a/tests/pwd.test
+++ b/tests/pwd.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/reg.test b/tests/reg.test
index 847da32..8afcb39 100644
--- a/tests/reg.test
+++ b/tests/reg.test
@@ -7,7 +7,7 @@
 # and aren't using Tcl -- reg's own regression tester also knows how
 # to read this file, ignoring the Tcl-isms.)
 #
-# Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
+# Copyright © 1998, 1999 Henry Spencer.  All rights reserved.
 
 if {"::tcltest" ni [namespace children]} {
     package require tcltest 2.5
diff --git a/tests/regexp.test b/tests/regexp.test
index a2e6dbb..842789e 100644
--- a/tests/regexp.test
+++ b/tests/regexp.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1998 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1998 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/regexpComp.test b/tests/regexpComp.test
index 53a68c5..4dfc2e6 100644
--- a/tests/regexpComp.test
+++ b/tests/regexpComp.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1998 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1998 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/registry.test b/tests/registry.test
index c1673b5..2a9608f 100644
--- a/tests/registry.test
+++ b/tests/registry.test
@@ -7,8 +7,8 @@
 # In order for these tests to run, the registry package must be on the
 # auto_path or the registry package must have been loaded already.
 #
-# Copyright (c) 1997 by Sun Microsystems, Inc.  All rights reserved.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.  All rights reserved.
+# Copyright © 1998-1999 Scriptics Corporation.
 
 if {"::tcltest" ni [namespace children]} {
     package require tcltest 2.5
diff --git a/tests/remote.tcl b/tests/remote.tcl
index 3c2fb51..6bc4b17 100644
--- a/tests/remote.tcl
+++ b/tests/remote.tcl
@@ -4,7 +4,7 @@
 #
 # Source this file in the remote server you are using to test Tcl against.
 #
-# Copyright (c) 1995-1996 Sun Microsystems, Inc.
+# Copyright © 1995-1996 Sun Microsystems, Inc.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/rename.test b/tests/rename.test
index ddda909..7a2cd94 100644
--- a/tests/rename.test
+++ b/tests/rename.test
@@ -4,9 +4,9 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/resolver.test b/tests/resolver.test
index 9916529..35df86b 100644
--- a/tests/resolver.test
+++ b/tests/resolver.test
@@ -4,8 +4,8 @@
 # in the reusing context.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 2011 Gustaf Neumann <gustaf.neumann@wu.ac.at>
-# Copyright (c) 2011 Stefan Sobernig <stefan.sobernig@wu.ac.at>
+# Copyright © 2011 Gustaf Neumann <gustaf.neumann@wu.ac.at>
+# Copyright © 2011 Stefan Sobernig <stefan.sobernig@wu.ac.at>
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/result.test b/tests/result.test
index b4662a0..8cc70d7 100644
--- a/tests/result.test
+++ b/tests/result.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1997 by Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/safe-stock.test b/tests/safe-stock.test
index 192189f..bfea85c 100644
--- a/tests/safe-stock.test
+++ b/tests/safe-stock.test
@@ -22,8 +22,8 @@
 #   subdirectory auto0 of the tests directory, which are independent of any
 #   changes made to the packages provided with Tcl.
 #
-# Copyright (c) 1995-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/safe-zipfs.test b/tests/safe-zipfs.test
index 73703e4..a97ed04 100644
--- a/tests/safe-zipfs.test
+++ b/tests/safe-zipfs.test
@@ -7,8 +7,8 @@
 # Sourcing this file into tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1995-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/safe.test b/tests/safe.test
index 1177e19..285cf4e 100644
--- a/tests/safe.test
+++ b/tests/safe.test
@@ -14,8 +14,8 @@
 # - Alternative tests using stock packages of Tcl 8.7 are in file
 #   safe-stock.test.
 #
-# Copyright (c) 1995-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/scan.test b/tests/scan.test
index fe912db..c125080 100644
--- a/tests/scan.test
+++ b/tests/scan.test
@@ -4,9 +4,9 @@
 # commands.  Sourcing this file into Tcl runs the tests and generates output
 # for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1994 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1994 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/security.test b/tests/security.test
index 3235a1f..6aa7ccb 100644
--- a/tests/security.test
+++ b/tests/security.test
@@ -6,8 +6,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 # All rights reserved.
 
 if {"::tcltest" ni [namespace children]} {
diff --git a/tests/set-old.test b/tests/set-old.test
index e29b93b..052bd23 100644
--- a/tests/set-old.test
+++ b/tests/set-old.test
@@ -6,9 +6,9 @@
 # into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/set.test b/tests/set.test
index 303c2d7..8372530 100644
--- a/tests/set.test
+++ b/tests/set.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/socket.test b/tests/socket.test
index e6f9c4f..3372ffa 100644
--- a/tests/socket.test
+++ b/tests/socket.test
@@ -4,8 +4,8 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-2000 Ajuba Solutions.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-2000 Ajuba Solutions.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/source.test b/tests/source.test
index 378d62e..5441b13 100644
--- a/tests/source.test
+++ b/tests/source.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-2000 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-2000 Scriptics Corporation.
 # Contributions from Don Porter, NIST, 2003.  (not subject to US copyright)
 #
 # See the file "license.terms" for information on usage and redistribution
diff --git a/tests/split.test b/tests/split.test
index 9c95b81..74879cf 100644
--- a/tests/split.test
+++ b/tests/split.test
@@ -4,9 +4,9 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/stack.test b/tests/stack.test
index 77cb69f..461e8d3 100644
--- a/tests/stack.test
+++ b/tests/stack.test
@@ -4,7 +4,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1998-2000 Ajuba Solutions.
+# Copyright © 1998-2000 Ajuba Solutions.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/string.test b/tests/string.test
index 9c314b9..e68395d 100644
--- a/tests/string.test
+++ b/tests/string.test
@@ -4,10 +4,10 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
-# Copyright (c) 2001 by Kevin B. Kenny.  All rights reserved.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
+# Copyright © 2001 Kevin B. Kenny.  All rights reserved.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/stringObj.test b/tests/stringObj.test
index e1b6c03..42c0f47 100644
--- a/tests/stringObj.test
+++ b/tests/stringObj.test
@@ -6,8 +6,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1995-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/subst.test b/tests/subst.test
index 4361d95..0503a45 100644
--- a/tests/subst.test
+++ b/tests/subst.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1994 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-2000 Ajuba Solutions.
+# Copyright © 1994 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-2000 Ajuba Solutions.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/switch.test b/tests/switch.test
index 8ca049c..2fce108 100644
--- a/tests/switch.test
+++ b/tests/switch.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/tailcall.test b/tests/tailcall.test
index 3704333..4846d39 100644
--- a/tests/tailcall.test
+++ b/tests/tailcall.test
@@ -4,7 +4,7 @@
 # found in ::tcl::unsupported. The tests will migrate to normal test files
 # if/when the commands find their way into the core.
 #
-# Copyright (c) 2008 by Miguel Sofer.
+# Copyright © 2008 Miguel Sofer.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/tcltest.test b/tests/tcltest.test
index 412a88e..de157ed 100644
--- a/tests/tcltest.test
+++ b/tests/tcltest.test
@@ -2,8 +2,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1998-1999 by Scriptics Corporation.
-# Copyright (c) 2000 by Ajuba Solutions
+# Copyright © 1998-1999 Scriptics Corporation.
+# Copyright © 2000 Ajuba Solutions
 # All rights reserved.
 
 # Note that there are several places where the value of
diff --git a/tests/thread.test b/tests/thread.test
index 0a35d1b..87946c9 100644
--- a/tests/thread.test
+++ b/tests/thread.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
-# Copyright (c) 2006-2008 by Joe Mistachkin.  All rights reserved.
+# Copyright © 1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
+# Copyright © 2006-2008 Joe Mistachkin.  All rights reserved.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/timer.test b/tests/timer.test
index 48d88b6..1ad17ae 100644
--- a/tests/timer.test
+++ b/tests/timer.test
@@ -7,8 +7,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1997 by Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/tm.test b/tests/tm.test
index 65629ad..4dea27d 100644
--- a/tests/tm.test
+++ b/tests/tm.test
@@ -3,7 +3,7 @@
 # Sourcing this file into Tcl runs the tests and generates output for
 # errors.  No output means no errors were found.
 #
-# Copyright (c) 2004 by Donal K. Fellows.
+# Copyright © 2004 Donal K. Fellows.
 # All rights reserved.
 
 if {"::tcltest" ni [namespace children]} {
diff --git a/tests/trace.test b/tests/trace.test
index c1e1a24..7d3ee41 100644
--- a/tests/trace.test
+++ b/tests/trace.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/unixFCmd.test b/tests/unixFCmd.test
index 1ecaeef..a46868a 100644
--- a/tests/unixFCmd.test
+++ b/tests/unixFCmd.test
@@ -4,7 +4,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1996 Sun Microsystems, Inc.
+# Copyright © 1996 Sun Microsystems, Inc.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/unixFile.test b/tests/unixFile.test
index 492e5d0..56821c4 100644
--- a/tests/unixFile.test
+++ b/tests/unixFile.test
@@ -4,7 +4,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/unixForkEvent.test b/tests/unixForkEvent.test
index 5233496..f321b10 100644
--- a/tests/unixForkEvent.test
+++ b/tests/unixForkEvent.test
@@ -2,8 +2,8 @@
 # tclUnixNotify.c.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1995-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/unixInit.test b/tests/unixInit.test
index 26d4130..aa3d50a 100644
--- a/tests/unixInit.test
+++ b/tests/unixInit.test
@@ -4,8 +4,8 @@
 # commands.  Sourcing this file into Tcl runs the tests and generates output
 # for errors.  No output means no errors were found.
 #
-# Copyright (c) 1997 by Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/unixNotfy.test b/tests/unixNotfy.test
index cdf0519..8ab0edb 100644
--- a/tests/unixNotfy.test
+++ b/tests/unixNotfy.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1997 by Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/unknown.test b/tests/unknown.test
index 4cad132..cb0a7c4 100644
--- a/tests/unknown.test
+++ b/tests/unknown.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/unload.test b/tests/unload.test
index 32767fa..52debd0 100644
--- a/tests/unload.test
+++ b/tests/unload.test
@@ -4,9 +4,9 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1995 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
-# Copyright (c) 2003-2004 by Georgios Petasis
+# Copyright © 1995 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
+# Copyright © 2003-2004 Georgios Petasis
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/uplevel.test b/tests/uplevel.test
index 3434564..de21361 100644
--- a/tests/uplevel.test
+++ b/tests/uplevel.test
@@ -4,9 +4,9 @@
 # commands.  Sourcing this file into Tcl runs the tests and generates output
 # for errors.  No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/upvar.test b/tests/upvar.test
index 9e44a79..1d7020f 100644
--- a/tests/upvar.test
+++ b/tests/upvar.test
@@ -4,9 +4,9 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/utf.test b/tests/utf.test
index ef693b2..7c46c70 100644
--- a/tests/utf.test
+++ b/tests/utf.test
@@ -2,8 +2,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for
 # errors.  No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/util.test b/tests/util.test
index d303bb4..3d4663d 100644
--- a/tests/util.test
+++ b/tests/util.test
@@ -1,8 +1,8 @@
 # This file is a Tcl script to test the code in the file tclUtil.c.
 # This file is organized in the standard fashion for Tcl tests.
 #
-# Copyright (c) 1995-1998 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1995-1998 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/var.test b/tests/var.test
index dcd0148..2ea5693 100644
--- a/tests/var.test
+++ b/tests/var.test
@@ -8,8 +8,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/while-old.test b/tests/while-old.test
index 5c943d6..b5b69dc 100644
--- a/tests/while-old.test
+++ b/tests/while-old.test
@@ -6,9 +6,9 @@
 # into Tcl runs the tests and generates output for errors.
 # No output means no errors were found.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/while.test b/tests/while.test
index 3c53bea..2bfab2a 100644
--- a/tests/while.test
+++ b/tests/while.test
@@ -4,8 +4,8 @@
 # commands.  Sourcing this file into Tcl runs the tests and generates output
 # for errors.  No output means no errors were found.
 #
-# Copyright (c) 1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/winConsole.test b/tests/winConsole.test
index 9075ff3..8ca1457 100644
--- a/tests/winConsole.test
+++ b/tests/winConsole.test
@@ -4,7 +4,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1999 by Scriptics Corporation.
+# Copyright © 1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/winDde.test b/tests/winDde.test
index 9d15357..1a14737 100644
--- a/tests/winDde.test
+++ b/tests/winDde.test
@@ -4,7 +4,7 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors. No output means no errors were found.
 #
-# Copyright (c) 1999 by Scriptics Corporation.
+# Copyright © 1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/winFCmd.test b/tests/winFCmd.test
index 1fb3e5f..15a51fe 100644
--- a/tests/winFCmd.test
+++ b/tests/winFCmd.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1996-1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1996-1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/winFile.test b/tests/winFile.test
index 5e0731f..d2683e4 100644
--- a/tests/winFile.test
+++ b/tests/winFile.test
@@ -4,8 +4,8 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/winNotify.test b/tests/winNotify.test
index 0433b4a..06c1388 100644
--- a/tests/winNotify.test
+++ b/tests/winNotify.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1997 by Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/winPipe.test b/tests/winPipe.test
index 8656f0a..10b4c29 100644
--- a/tests/winPipe.test
+++ b/tests/winPipe.test
@@ -6,8 +6,8 @@
 # Sourcing this file into Tcl runs the tests and generates output for errors.
 # No output (except for one message) means no errors were found.
 #
-# Copyright (c) 1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/winTime.test b/tests/winTime.test
index 68be966..5a4a855 100644
--- a/tests/winTime.test
+++ b/tests/winTime.test
@@ -4,8 +4,8 @@
 # built-in commands.  Sourcing this file into Tcl runs the tests and
 # generates output for errors.  No output means no errors were found.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1997 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/zipfs.test b/tests/zipfs.test
index 017193b..964932f 100644
--- a/tests/zipfs.test
+++ b/tests/zipfs.test
@@ -4,8 +4,8 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1996-1998 by Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1996-1998 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/tests/zlib.test b/tests/zlib.test
index 7ddf1d7..f124a95 100644
--- a/tests/zlib.test
+++ b/tests/zlib.test
@@ -4,8 +4,8 @@
 # commands. Sourcing this file into Tcl runs the tests and generates output
 # for errors. No output means no errors were found.
 #
-# Copyright (c) 1996-1998 by Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 by Scriptics Corporation.
+# Copyright © 1996-1998 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution of
 # this file, and for a DISCLAIMER OF ALL WARRANTIES.