Remove $FreeBSD$: one-line sh pattern

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

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.

Rename logf --> chat_logf to avoid naming conflicts
with GCC built-in (and with C90 reserved library name).

Approved by: gordon (Mentor)

Replace -fno-builtin-logf with a -D argument to change the function name.

Disclaim ownership of pppd/chat. It is vendor code, but has been badly
neglected here.

The math function logf() probably isn't doing us much good for logging
stuff. Add -fno-builtin-logf.

Remove GCC-specific flags.

MAN[1-9] -> MAN.

$Id$ -> $FreeBSD$

Tweaks to allow compiling -Wall (mostly adding "const" to char rcsid[]).

Cleanup and remove the not-too-useful examples. The current versions
should be in share/examples if anywhere.

Import chat(8) from ppp-2.3.1 distribution

Obtained from: Paul Mackerras <paulus@cs.anu.edu.au>

Revert $FreeBSD$ to $Id$

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.

Merge in changes from ppp-2.2's chat onto the mainline...

Vendor branch import of chat from ppp-2.2 package..

chat for ppp, from ppp 2.1.2