Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

mdoc: remove literal tabs where they don't belong

Update xrefs from 4.3BSD to modern signal functions in various man pages.

sigvec(2) references have been updated to sigaction(2), sigsetmask(2) and
sigblock(2) to sigprocmask(2), sigpause(2) to sigsuspend(2).

Some legacy man pages still refer to them, that is OK.

Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

``NULL is a specific instance of a null pointer constant; the generic is
a "null pointer".''

Making good use of the excellent explanations sent to me by Ruslan
Ermilov, Garrett Wollman and Bruce Evans, correct the descriptions of
null pointers. They are just "null pointers", not nil, not NULL or
".Dv NULL".

Suggested by: ru, wollman, bde
Reviewed by: ru, wollman
Pointy hat: keramida

Use .Dv NULL when referring to NULL C pointers, instead of "nil".

Mechanically kill hard sentence breaks.

mdoc(7): Properly mark C headers.

mdoc(7) police: "The .Fa argument.".

mdoc(7) police: Tidy up the syscall language.

Stop calling system calls "function calls".

Use "The .Fn system call" a-la "The .Nm utility".

When referring to a non-BSD implementation in
the HISTORY section, call syscall a function,
to be safe.

mdoc(7) police: Use the new .In macro for #include statements.

Use ``.Rv -std'' wherever possible.

Submitted by: yar

Remove whitespace at EOL.

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

Prepare for mdoc(7)NG.

Introduce ".Lb" macro to libc manpages.

More libraries manpages updates following.

$Id$ -> $FreeBSD$

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

Explicitly point that it_value == 0 disables timer regardles of
it_interval value. It is backward-compatible with previous usage
and SunOS-compatible now.

Describe itimerfix upper limit

Fixed missing const(s) or #include(s) in synopsis.

Merge from Lite2 onto mainline -
- add undelete() and undelete.2 (requires libc minor bump some time)
- man page updates

Sort cross references.

Correctly use .Fn instead of .Nm to reference function names
in a bunch of man pages.

Use the correct .Bx (BSD UNIX) or .At (AT&T UNIX) macros
instead of explicitly specifying the version in the text
in a bunch of man pages.

Xref clocks(7).

This commit was generated by cvs2svn to compensate for changes in r1573,
which included commits to RCS files with non-trunk default branches.

BSD 4.4 Lite Lib Sources