Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with: imp, rwatson

This now passes a make universe with WARNS=6.

Change a char that is used as an index into an array into an unisgned char.
Add a missing new style function definition.

Build usr.bin/ with WARNS=6 by default.

Also add some missing $FreeBSD$ to keep svn happy.

cleanup code: remove unnecessary and useless void cast
from void-function skip_string().

Correct parser by using intended C equality ("==") instead of
assignment ("=") operator.

fix bug: avoid dereferencing content of an already free(3)'ed chunk

Fix type mismatch between char * and unsigned char *. C guarantees that
the values of the characters here are positive, so it's safe to index arrays
with them.

Added the EXIT STATUS section where appropriate.

It was pointed out[0] that ctags(1) uses some potentially dangerous
system(3) calls where user-supplied data is used with no sanity
checking. Since ctags(1) is not setuid and is not likely to be used
in a privileged situation, this is not a big deal. However, the
fix is relatively easy and less ugly than the current code, let's be
safe. (I'm sure there are about 2^134 other system(3) calls like this
out there.)

[0] On freebsd-security by Roman Bogorodskiy <bogorodskiy@inbox.ru>
with subject "ctags(1) command execution vulnerability."

MFC after: 3 days

The .Xr files

mdoc(7) police: markup polishing.

Approved by: re

ANSIify function definitions to avoid a warning.

Document conformance to IEEE Std 1003.1-2001.

Sort sections according to mdoc(7).

Sort entries by locale collating order when -x is specified.

Create tags for typedefs, structs, unions and enums by default (imply the
-t option). Make a new option, -T, to revert to the old behaviour.

Avoid buffer overrun when identifies or filenames are extremely long.

OpenBSD revisions: C.c 1.4-1.5, ctags.c 1.5, fortran.c 1.3, lisp.c 1.3,
tree.c 1.2

Obtained from: OpenBSD

Exit non-zero if the tags file cannot be opened.

Use `The .Nm utility'

remove __P

Add missing "#include <string.h>" for memcmp, noticed by gcc3.

ctags would create a corrupt tags file if the source C file used '//' style
comments such as:

// The main() function

Teach ctags about this style of commenting.

Submitted by: Eric Allman <eric@Sendmail.ORG>
MFC after: 1 week

Remove leaf node WARNS?=2 (that mainly I added). This should
help the GCC3 transition and CURRENT in general.

add missing <string.h> to give strcpy() a prototype

mdoc(7) police overhaul.

Remove unused #includes. lex -> Lex, yacc -> Yacc, ... Some .Nm to .Em
conversions. Sort #includes. Spelling. use errx() instead of err() when
explicit message is given.

Style improvements recommended by Bruce as a follow up to some
of the recent WARNS commits. The idea is:

1) FreeBSD id tags should follow vendor tags.
2) Vendor tags should not be compiled (though copyrights probably should).
3) There should be no blank line between including cdefs and __FBSDIF.

Use __FBSDID().

WARNS=2 fixup.

Print a space between the function name and line number.

PR: bin/10980
MFC after: 2 weeks

Add $FreeBSD$

MFC after: 2 weeks

Remove whitespace at EOL.

mdoc(7) police: removed HISTORY info from the .Os call.

mdoc(7) police: use the new features of the Nm macro.

Style change and comment difference per bde.

Obtained from:bde@freebsd.org
Marionette by:mjacob@freebsd.org

A cleaner fix to previous.
Obtained from:bde@freebsd.org

Fix ctags from core dumping on alpha. Let the diffs out to review,
but I timed out. Added FreeBSD CVS header.

$Id$ -> $FreeBSD$

Add $Id$, to make it simpler for members of the translation teams to
track.

The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;

.\" $Id$
.\"

If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.

Approved by: bde

Add braces to avoid ambigious else.

Tweaks to allow compiling -Wall (mostly adding "const" to char rcsid[]).

Ctags write to buffer beyond the end of it when the source file
doesn't end with '\n'. It brings segmentation fault.

PR: 4812
Reviewed by: phk
Submitted by: Shigio Yamaguchi <shigio@wafu.netgate.net>

-Wall cleanup.

Teach ctags(1) how to handle intermediate whitespace in macros
and function definitions.

PR: misc/4128
Submitted by: Shigio Yamaguchi <shigio@wafu.netgate.net>

Add usage string. Typo in man page.

compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.

Add newline, closes bin/1433

Fix a bunch of spelling errors in a bunch of man pages.

This commit was generated by cvs2svn to compensate for changes in r1590,
which included commits to RCS files with non-trunk default branches.