Remove $FreeBSD$: two-line nroff pattern

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

rescure.8: Do not recommend release artifact disc2

The FreeBSD project does not publish disc2 image anymore.

MFC after: 2 weeks

use .Mt to mark up email addresses consistently (part6)

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.

mdoc: order prologue macros consistently by Dd/Dt/Os

Although groff_mdoc(7) gives another impression, this is the ordering
most widely used and also required by mdocml/mandoc.

Reviewed by: ru
Approved by: philip, ed (mentors)

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.

Use .Nx macro for NetBSD.

Thanks to: Ruslan Ermilov

Credit NetBSD as the source for the /rescue concept.
While I'm here, update my own email address.

Thanks to: Luke Mewburn for pointing out the oversight.

Move the rescue manpage, documenting the new rescue utilities in
/rescue, from section 7 to section 8. The old rescue.7 file has been
simply subjected to "cvs rm", as there is no history to preserve.

Update the release documentation accordingly.

Requested by: njl, ru
Most text by: Tim Kientzle <kientzle@acm.org>
Reviewed by: ru, doc@
Approved by: ceri (mentor)