Remove $FreeBSD$: two-line nroff pattern

Remove /^\.\\"\n\.\\"\s*\$FreeBSD\$$\n/

stablerestart(5): Fix some issues reported by mandoc

- New sentence, new line

Modify the man pages to reflect the addition of a backup
stable restart file, as done by r220510.
This is a content change.

MFC after: 2 weeks

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Fix typos and spelling mistakes.

mdoc: Garbage collect unused/unneeded macros

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.

Yet another cosmetic fix.

Cosmetical fixes.

Use our canonical .Dd format.

Submitted by: Ulrich Spoerlein

Modify nfsd.c to add support for the experimental nfs server.
This includes the addition of a new flag "-4" that will force
use of the experimental server with nfsv4 support in it. This
commit also adds two new man pages to the repository that are
NFSv4 specific. One describes the file used by the server to
restart nfsv4 services safely. The other is a brief overview
of nfsv4 and its setup.

Reviewed by: dfr
Approved by: kib (mentor)