Now that all Tcl source files are UTF-8 by default, we can use the ©-sign whenever reasonable.

148 files changed, 337 insertions, 337 deletions

diff --git a/library/auto.tcl b/library/auto.tcl
index 32da97c..7c9f38c 100644
--- a/library/auto.tcl
+++ b/library/auto.tcl
@@ -3,8 +3,8 @@
 # utility procs formerly in init.tcl dealing with auto execution of commands
 # and can be auto loaded themselves.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1998 Sun Microsystems, Inc.
+# Copyright © 1991-1993 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/library/clock.tcl b/library/clock.tcl
index b62f507..150ae3c 100644
--- a/library/clock.tcl
+++ b/library/clock.tcl
@@ -9,7 +9,7 @@
 #
 #----------------------------------------------------------------------
 #
-# Copyright (c) 2004-2007 Kevin B. Kenny
+# Copyright © 2004-2007 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/library/history.tcl b/library/history.tcl
index ef9099b..4867021 100644
--- a/library/history.tcl
+++ b/library/history.tcl
@@ -2,7 +2,7 @@
 #
 # Implementation of the history command.
 #
-# Copyright (c) 1997 Sun Microsystems, Inc.
+# Copyright © 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/library/init.tcl b/library/init.tcl
index 45178de..52b97d8 100644
--- a/library/init.tcl
+++ b/library/init.tcl
@@ -3,11 +3,11 @@
 # Default system startup file for Tcl-based applications.  Defines
 # "unknown" procedure and auto-load facilities.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1996 Sun Microsystems, Inc.
-# Copyright (c) 1998-1999 Scriptics Corporation.
-# Copyright (c) 2004 Kevin B. Kenny.
-# Copyright (c) 2018 Sean Woods
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994-1996 Sun Microsystems, Inc.
+# Copyright © 1998-1999 Scriptics Corporation.
+# Copyright © 2004 Kevin B. Kenny.
+# Copyright © 2018 Sean Woods
 #
 # All rights reserved.
 #
diff --git a/library/msgcat/msgcat.tcl b/library/msgcat/msgcat.tcl
index 145569c..12ab43f 100644
--- a/library/msgcat/msgcat.tcl
+++ b/library/msgcat/msgcat.tcl
@@ -4,9 +4,9 @@
 #	message catalog facility for Tcl programs.  It should be
 #	loaded with the command "package require msgcat".
 #
-# Copyright (c) 2010-2018 Harald Oehlmann.
-# Copyright (c) 1998-2000 Ajuba Solutions.
-# Copyright (c) 1998 Mark Harrison.
+# Copyright © 2010-2018 Harald Oehlmann.
+# Copyright © 1998-2000 Ajuba Solutions.
+# Copyright © 1998 Mark Harrison.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
diff --git a/library/package.tcl b/library/package.tcl
index 64fac7b..7df9fe4 100644
--- a/library/package.tcl
+++ b/library/package.tcl
@@ -3,8 +3,8 @@
 # utility procs formerly in init.tcl which can be loaded on demand
 # for package management.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994-1998 Sun Microsystems, Inc.
+# Copyright © 1991-1993 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/library/parray.tcl b/library/parray.tcl
index a9c2cb1..984bf47 100644
--- a/library/parray.tcl
+++ b/library/parray.tcl
@@ -1,8 +1,8 @@
 # parray:
 # Print the contents of a global array on stdout.
 #
-# Copyright (c) 1991-1993 The Regents of the University of California.
-# Copyright (c) 1994 Sun Microsystems, Inc.
+# Copyright © 1991-1993 The Regents of the University of California.
+# Copyright © 1994 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/library/safe.tcl b/library/safe.tcl
index 4c0f3b1..0efc00f 100644
--- a/library/safe.tcl
+++ b/library/safe.tcl
@@ -7,7 +7,7 @@
 #
 # See the safe.n man page for details.
 #
-# Copyright (c) 1996-1997 Sun Microsystems, Inc.
+# Copyright © 1996-1997 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/library/word.tcl b/library/word.tcl
index 4de7648..58ff4dc 100644
--- a/library/word.tcl
+++ b/library/word.tcl
@@ -4,8 +4,8 @@
 # strings. This file is primarily needed so Tk text and entry widgets behave
 # properly for different platforms.
 #
-# Copyright (c) 1996 Sun Microsystems, Inc.
-# Copyright (c) 1998 Scritpics Corporation.
+# Copyright © 1996 Sun Microsystems, Inc.
+# Copyright © 1998 Scritpics 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-perf/clock.perf.tcl b/tests-perf/clock.perf.tcl
index c0da0ab..7bcee75 100644
--- a/tests-perf/clock.perf.tcl
+++ b/tests-perf/clock.perf.tcl
@@ -9,7 +9,7 @@
 #
 # ------------------------------------------------------------------------
 #
-# Copyright (c) 2014 Serg G. Brester (aka sebres)
+# Copyright © 2014 Serg G. Brester (aka sebres)
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file.
diff --git a/tests-perf/test-performance.tcl b/tests-perf/test-performance.tcl
index af8ee96..e805b43 100644
--- a/tests-perf/test-performance.tcl
+++ b/tests-perf/test-performance.tcl
@@ -9,7 +9,7 @@
 #
 # ------------------------------------------------------------------------
 #
-# Copyright (c) 2014 Serg G. Brester (aka sebres)
+# Copyright © 2014 Serg G. Brester (aka sebres)
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file.
diff --git a/tests-perf/timer-event.perf.tcl b/tests-perf/timer-event.perf.tcl
index f68a56a..5d1d3c6 100644
--- a/tests-perf/timer-event.perf.tcl
+++ b/tests-perf/timer-event.perf.tcl
@@ -9,7 +9,7 @@
 #
 # ------------------------------------------------------------------------
 #
-# Copyright (c) 2014 Serg G. Brester (aka sebres)
+# Copyright © 2014 Serg G. Brester (aka sebres)
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file.
diff --git a/tests/all.tcl b/tests/all.tcl
index c72334a..855d762 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 by Scriptics Corporation.
+# Copyright © 2000 by 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..3ee9c63 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 by 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..671e47b 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 by 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..d8fb6de 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 by 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/assocd.test b/tests/assocd.test
index 7d89daa..6702abd 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 by 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..428d4cd 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 by 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..d726e47 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 by 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..99ebe8c 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 by 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..545c7b3 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 by Sun Microsystems, Inc.
+# Copyright © 1998-1999 by 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/case.test b/tests/case.test
index 87cb2c8..0a17bed 100644
--- a/tests/case.test
+++ b/tests/case.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 by 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..37f551a 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 by 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 74fd387..bc6d7d4 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 by Sun Microsystems, Inc.
+# Copyright © 1998-1999 by 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..c375fdf 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 by 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..f77b34e 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 by 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..8de6fbe 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 by 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 7a9aa5c..61021a1 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 by 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 4ef155b..fc0fbb8 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 by 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 ef6ab65..2b1de2f 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 by Sun Microsystems, Inc.
+# Copyright © 1998-1999 by 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/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..9302d5a 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 by 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 d0ca114..e680b26 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 by 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..b5cb74dd 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 by 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..e370f80 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 by 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..41465a6 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 by 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..de9bd2b 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 by 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..04ecdcb 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 by 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 daaad16..c3f4340 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 by 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 327faa2..14360fc 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 by 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 da5a23d..64ec0b3 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 by 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..1a2e4ee 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 by 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..ca229c4 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 by 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/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 44fa64e..c807c9e 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 9e7728a..c148f18 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 by 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..f6f673d 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 by 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..64c023f 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 by 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/if-old.test b/tests/if-old.test
index e537fea..b499d5e 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 by 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..974b618 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 by 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..3b534ef 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 by 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..06f5773 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 by 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..c2c938f 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 by 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..5c99e1e 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 by 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..ef94414 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 by 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..e7b5d1d 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 by 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..c62d754 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 by 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/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 f9397d2..64bc4a5 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..7fef6d5 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 by 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..559c6d4 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 by 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..a7da3d0 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 by 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..5278964 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 by 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..a489590 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 by 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/load.test b/tests/load.test
index c79ddf4..9a4311c 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 by 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..65391f2 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 by 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..ad51112 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 by 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..8e991b4 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 by 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..ec3e04c 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 by 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..a6643a8 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 by 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..6466fec 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 by 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..3a116d5 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 by 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 ae0fdd5..e38001d 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..01ff79d 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 by 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..c60a152 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 by 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 636f953..923cf3f 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 by 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 8209cf3..73f193b 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 by 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..9b17733 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 by 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/obj.test b/tests/obj.test
index e10cebf..80643c3 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 by 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/opt.test b/tests/opt.test
index 419e6bf..e4dafdc 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 by 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..9085958 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 by 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 0786478..276a025 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 by 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..633fcc5 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 by 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..82c6b17 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 by 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..49b9367 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 by 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..e14ddf4 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 by Scriptics Corporation.
 # All rights reserved.
 
 if {"::tcltest" ni [namespace children]} {
diff --git a/tests/platform.test b/tests/platform.test
index fff16fd..7752ef6 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 by 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..dfe45be 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 by 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..060e70c 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 by 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/pwd.test b/tests/pwd.test
index 3d4cffd..decc144 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 by 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..6f2d5cd 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 by 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..0a211d4 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 by 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..b367fed 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 by Sun Microsystems, Inc.  All rights reserved.
+# Copyright © 1998-1999 by 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..e1c6bee 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 by 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/result.test b/tests/result.test
index f1f5fb7..3f989a8 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 by Sun Microsystems, Inc.
+# Copyright © 1998-1999 by 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..334517c 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 by 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..518c3c6 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 by 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..2138f45 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 by Scriptics Corporation.
 # All rights reserved.
 
 if {"::tcltest" ni [namespace children]} {
diff --git a/tests/set-old.test b/tests/set-old.test
index e29b93b..68a207d 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 by 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..483c561 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 by 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 c6cccd6..130cab1 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 by 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..e88ebcc 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 by 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 4817bec..1819262 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 by Scriptics Corporation.
+# Copyright © 2001 by 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 ca6c323..8f762ab 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 by 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..f40dfc1 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 by 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/tcltest.test b/tests/tcltest.test
index ac2185b..8567451 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 by Scriptics Corporation.
+# Copyright © 2000 by 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..8c22bd8 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 by Scriptics Corporation.
+# Copyright © 2006-2008 by 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..1e2feab 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 by Sun Microsystems, Inc.
+# Copyright © 1998-1999 by 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..3132704 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 by Donal K. Fellows.
 # All rights reserved.
 
 if {"::tcltest" ni [namespace children]} {
diff --git a/tests/trace.test b/tests/trace.test
index c1e1a24..f4db000 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 by 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..8ed2fcb 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 by 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..961da89 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 by 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..0b946df 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 by Sun Microsystems, Inc.
+# Copyright © 1998-1999 by 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..86c7cb8 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 by Sun Microsystems, Inc.
+# Copyright © 1998-1999 by 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..3635b96 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 by 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..26d9df9 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 by Scriptics Corporation.
+# Copyright © 2003-2004 by 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..558d440 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 by 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..db4c7c3 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 by 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 6ab3b4c..e993b32 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 by 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 d8e5507..5028124 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 by 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 19b7703..dda852d 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 by 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 f5315fb..77a29ae 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 by 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 b804aa5..9fa68b6 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 by 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..6e23b31 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 by 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..ef70e17 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 by 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..4147afb 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 by 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..a8e846c 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 by 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..79f8ec6 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 by Sun Microsystems, Inc.
+# Copyright © 1998-1999 by 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..bb001e9 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 by 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..6c02a61 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 by Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.