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 sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

pkgbase: Put accounting utilities in the acct package

Add libxo(3) support to last(1).

Reviewed by: kp
Approved by: re (gjb)
MFC after: 1 week
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D16922

Build last(1) and leave(1) with WARNS=6.

These ports were only built with WARNS=1, because they use certain
format extensions. We can use NO_WFORMAT for that instead.

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.

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

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

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

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

Silence warnings and minor style fixes. Mostly constify and don't
assume that time_t is a long. Clamp down with WARNS=2.

Not objected to by: -audit

BSD 4.4 Lite Usr.bin Sources