Remove $FreeBSD$: one-line sh pattern

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

Move dhclient.conf to sbin/dhclient/.

This also leverages CONFS for handling config files.

Approved by: re (gjb), will (mentor)
Differential Revision: https://reviews.freebsd.org/D17160

Remove dhclient.conf from here in prep for the move of it from etc/.

This is being done a separate step to ease importing into other VCSes.

Approved by: re (gjb), will (mentor)
Differential Revision: https://reviews.freebsd.org/D17160

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.

Implement RFC3442, the Classless Static Route option.

The original DHCP specification includes a route option but it supports
only class-based routes. RFC3442 adds support for specifying the netmask
width for each static route. A variable length encoding is used to minimize
the size of this option.

PR: bin/99534
Submitted by: Andrey V. Elsukov <bu7cher@yandex.ru>
Reviewed by: brooks

Add a $FreeBSD$ tag missing after the original import. Note that this
file isn't actually installed; the one in src/etc is.

Import the OpenBSD dhclient as shipped with OpenBSD-3.7 (the tag
OPENBSD_3_7).