usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

Remove $FreeBSD$: one-line nroff pattern

Remove /^\.\\"\s*\$FreeBSD\$$\n/

touch.1: Update to conform to POSIX 2004

POSIX borrowed the "double leap second" bug from C89. Double leap seconds can
never happen. This mistake was present in at least POSIX 1997 and fixed by
POSIX 2004. I can't find a copy of 2001 online to determine if the bug was
present in that revision.

While here, remove duplicate language between -d and -t. A few other minor
enhancements and an igor (lint) bugfix.

Further reading:

2018 POSIX (documents -d):
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/touch.html

2004 POSIX (documents SS from 0-60):
http://pubs.opengroup.org/onlinepubs/009695399/utilities/touch.html

1997 POSIX/SUSv2 (historical interest, 0-61):
http://pubs.opengroup.org/onlinepubs/007908799/xcu/touch.html

More on this subject (start at "Unix system time and the POSIX standard")
https://www.ucolick.org/~sla/leapsecs/onlinebib.html

And: https://marc.info/?l=openbsd-tech&m=92682843416159&w=2

Reported by: Vishal Sahu <vsahu AT isilon.com>
Sponsored by: Dell EMC Isilon

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

touch(1): Xref utimensat(2) instead of utimes(2).

touch: Add the -d option from POSIX.1-2008.

This is much like -t but with a different format which is ISO8601-like and
allows fractions of a second.

The precision is limited to microseconds because of utimes() and friends,
even though stat() returns nanoseconds.

MFC after: 10 days

Remove trailing whitespace per mdoc lint warning

Disussed with: gavin
No objection from: doc
Approved by: joel
MFC after: 3 days

Remove useless and potentially dangerous rw() function which tries to
update access and modification times by reading and writing the file.
chmod(2) in rw() doesn't help because utimes(2) allow owner and the
super-user to change times. Using just utimes(2) should be sufficient.

The -f option becomes no-op.

Reviewed by: jilles

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

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

Update to match revision 1.23 of touch.c.
Clarify some details.

Add -A flag to adjust existing time stamps.
Print name by which program was started in usage() message.

MFC after: 2 weeks

Expand *n't contractions.

Sort sections.

Added the EXIT STATUS section where appropriate.

Clarify that -h implies -c.

Add the 'h' flag to operate on symlinks rather than what they point to.

mdoc(7) police: utilize the new .Ex macro.

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

Add DIAGNOSTICS section name

$Id$ -> $FreeBSD$

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

Merge from 2_2 man page change.

Cosmetic.

Finish importing Lite2's src/usr.bin, except for ex, diff, grep, mail,
pascal and vmstat.sparc. All changed files on the vendor branch should
already have been imported.

YY --> CC

BSD 4.4 Lite Usr.bin Sources