Remove $FreeBSD$: one-line sh pattern

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

Switch the default pager for most commands to less

Finally, a pager for the nineties.

MFC after: Never
Relnotes: Yes
Differential Revision: https://reviews.freebsd.org/D13465
Poll: https://reviews.freebsd.org/V7

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.

$Id$ -> $FreeBSD$

Add an example file for private E-Mail aliases. A user can share
~/.mail_aliases with different mail clients (e.g. mutt, mail) and can
make ~/.mailrc readable and keep the aliases private.

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.

Improve comments, sync sh/csh scripts if possible.

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