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 sh pattern

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

Create a rcmds package.

Sponsored by: The FreeBSD Foundation

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.

Port all applications in usr.sbin/ from libulog to utmpx.

The last big commit: let usr.sbin/ use WARNS=6 by default.

Let rwhod use libulog.

I am not planning on providing a mechanism tot stat() the database files
directly. The disadvantage of this, is that rwhod will now be a little
bit more heavy than it used to be. It normally used to fstat() the file
descriptor to see whether the file had changed, but this is now
impossible to implement, meaning we have to parse the entire utmp file
each 180 seconds.

This is probably not an issue on modern 16-way servers, but if it turns
out to be a problem, we'll think of something.

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

style.Makefile(5)

Comment out WARNS?=4 to unbreak the Alpha build.

WARNS=4, de-__P()

- Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.

Set the default manual section for usr.sbin/ to 8.

Get rid of update. Make man page installation work with our scheme
(and rename a few in the process).

BSD 4.4 Lite usr.sbin Sources