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/

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

mdoc: sort SEE ALSO.

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.

Sort SEE ALSO references (in dictionary order, ignoring case).

Mechanically kill hard sentence breaks.

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

mdoc(7) police: sort xrefs.

Correct cross-reference:
portmap.8 --> rpcbind.8

Submitted by: .Xr testing script

mdoc(7) police: properly use a -diag list in the DIAGNOSTICS section.

Reviewed by: ru

Prepare for mdoc(7)NG.

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

More rusers to .Nm convertion
Some of them found by: Sheldon

Add section number to .Xr. Put arguments under .Ar.

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.

$Id$ -> $FreeBSD$

Remove argv0, cosmetic in usage(), use err(3), add Xr to rwho(1) and users(1).

Revert $FreeBSD$ to $Id$

Sort cross references.

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

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

rusers from FreeBSD 1.1.5.1
Reviewed by: Geoff.
Submitted by: John Brezak