Merge 8.7

4 files changed, 36 insertions, 5 deletions

diff --git a/doc/InitSubSyst.3 b/doc/InitSubSyst.3
new file mode 100644
index 0000000..eef801f
--- /dev/null
+++ b/doc/InitSubSyst.3
@@ -0,0 +1,31 @@
+'\"
+'\" Copyright (c) 2018 Tcl Core Team
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\" 
+.so man.macros
+.TH Tcl_InitSubsystems 3 8.7 Tcl "Tcl Library Procedures"
+.BS
+.SH NAME
+Tcl_InitSubsystems \- initialize the Tcl library.
+.SH SYNOPSIS
+.nf
+\fB#include <tcl.h>\fR
+.sp
+void
+\fBTcl_InitSubsystems\fR(\fIvoid\fR)
+.SH DESCRIPTION
+.PP
+The \fBTcl_InitSubsystems\fR procedure initializes the Tcl
+library. This procedure is typically invoked as the very
+first thing in the application's main program.
+.PP
+\fBTcl_InitSubsystems\fR is very similar in use to
+\fBTcl_FindExecutable\fR. It can be used when Tcl is
+used as utility library, no other encodings than utf8,
+iso8859-1 or unicode are used, and no interest exists in the
+value of \fBinfo nameofexecutable\fR. The system encoding will not
+be extracted from the environment, but falls back to iso8859-1.
+.SH KEYWORDS
+binary, executable file
diff --git a/doc/OpenFileChnl.3 b/doc/OpenFileChnl.3
index 582ff4b..82851da 100644
--- a/doc/OpenFileChnl.3
+++ b/doc/OpenFileChnl.3
@@ -277,7 +277,7 @@ If an error occurs while opening the channel, \fBTcl_OpenCommandChannel\fR
 returns NULL and records a POSIX error code that can be retrieved with
 \fBTcl_GetErrno\fR.
 In addition, \fBTcl_OpenCommandChannel\fR leaves an error message in
-the interpreter's result if \fIinterp\fR is not NULL.
+the interpreter's result. \fIinterp\fR cannot be NULL.
 .PP
 The newly created channel is not registered in the supplied interpreter; to
 register it, use \fBTcl_RegisterChannel\fR, described below.
diff --git a/doc/StringObj.3 b/doc/StringObj.3
index e011c27..12fc413 100644
--- a/doc/StringObj.3
+++ b/doc/StringObj.3
@@ -91,7 +91,7 @@ Points to the first byte of an array of UTF-8-encoded bytes
 used to set or append to a string value.
 This byte array may contain embedded null characters
 unless \fInumChars\fR is negative.  (Applications needing null bytes
-should represent them as the two-byte sequence \fI\e700\e600\fR, use
+should represent them as the two-byte sequence \fI\e300\e200\fR, use
 \fBTcl_ExternalToUtf\fR to convert, or \fBTcl_NewByteArrayObj\fR if
 the string is a collection of uninterpreted bytes.)
 .AP int length in
diff --git a/doc/string.n b/doc/string.n
index 72c7913..44d621d 100644
--- a/doc/string.n
+++ b/doc/string.n
@@ -362,21 +362,21 @@ specified using the forms described in \fBSTRING INDICES\fR.
 Returns a value equal to \fIstring\fR except that any leading or
 trailing characters present in the string given by \fIchars\fR are removed.  If
 \fIchars\fR is not specified then white space is removed (any character
-for which \fBstring is space\fR returns 1, and "\0").
+for which \fBstring is space\fR returns 1, and "\e0").
 .TP
 \fBstring trimleft \fIstring\fR ?\fIchars\fR?
 .
 Returns a value equal to \fIstring\fR except that any leading
 characters present in the string given by \fIchars\fR are removed.  If
 \fIchars\fR is not specified then white space is removed (any character
-for which \fBstring is space\fR returns 1, and "\0").
+for which \fBstring is space\fR returns 1, and "\e0").
 .TP
 \fBstring trimright \fIstring\fR ?\fIchars\fR?
 .
 Returns a value equal to \fIstring\fR except that any trailing
 characters present in the string given by \fIchars\fR are removed.  If
 \fIchars\fR is not specified then white space is removed (any character
-for which \fBstring is space\fR returns 1, and "\0").
+for which \fBstring is space\fR returns 1, and "\e0").
 .SS "OBSOLETE SUBCOMMANDS"
 .PP
 These subcommands are currently supported, but are likely to go away in a