usr.sbin: 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/

vipw.8: Add a FILES section

Mention passwd related files in the FILES section
of vipw(8).

Obtained from: OpenBSD
MFC after: 3 days

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

Restore message in man page on VFS timestamp precision.

Requested by: bde, jhb

Correct date. It seems to be 2012.

Detect file modification properly by using tv_nsec.

POSIX 2008 standardizes st_mtim, meaning we can simply use nanosecond
precision to detect file modification.

MFC after: 2 weeks

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.

s/insure/ensure/ in previous commit. My dictionary and m-w.com say they
are synonymous, but ensure seems slightly closer and does not have the
connotation of buying insurance.

Reported by: Jason McIntyre <jmc at kerhand dot co dot uk>

Mention the possibility of non-interactive scripts for EDITOR and add a
BUGS section mentioning the requirement that such scripts run "sleep 1"
or equivalent to work reliably.

Cross-reference pw(8) into chpass(1), passwd(1), and vipw(8).

Per letter dated July 22, 1999 remove 3rd clause of Berkeley derived software
(with permission of addtional copyright holders where appropriate)

Mechanically kill hard sentence breaks.

The .Nm utility

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.

Remove single-space hard sentence breaks. These degrade the quality
of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.

Replace the -q option to pwd_mkdb with a test for PW_SCAN_BIG_IDS in
the environment. This allows big ID warnings to be suppressed for
vipw and chpass as well.

Since the environment variable test is only performed for callers
of pw_scan() that do not set pw_big_ids_warning, the test can still
be overriden. Currently, chpass and pwd_mkdb are the only users
of pw_scan() and neither of them overrides the environment variable
test.

$Id$ -> $FreeBSD$

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 -d option to vipw(8) to allow selection of an alternative directory
for the password files.

PR: 2703
Submitted by: jmg

Statisize usage().

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