Remove $FreeBSD$: two-line nroff pattern

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

use .Mt to mark up email addresses consistently (part3)

PR: 191174
Submitted by: Franco Fichtner <franco at lastsummer.de>

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.

Add a berase() function which uses ioctl(DIOCGDELETE) to erase a slab
of the disk.

Markup fixes.

Fixed spelling of the document date.

Remove unneccessary include of sys/types.h in the SYNOPSIS
header.

Sys/param.h includes sys/types.h internally unless LOCORE is
defined.

Approved by: des (mentor)

Various cleanups of careless mistakes/omissions.

PR: 53149
Submitted by: Lukas Ertl <l.ertl@univie.ac.at>

Left out the critical part of my "public domain" template, a notice saying
that this file is (these files are) in the public domain.

PR: 53149

Commit rudimentary libufs manual pages, except for that for
getino(3)/putino(3), inode.c has been reworked in Perforce to the point
where a manual page may not be accurate. Certainly putino(3) has not
even been merged back yet.

These will need a lot of improvement for most applications, but they
document the API enough to get someone on their feet, most likely. The
best documentation still exists in the form of libufs(3) consumers in the
base system.