Remove $FreeBSD$: two-line nroff pattern

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

"Buses" is the preferred plural of "bus"

Replace archaic "busses" with modern form "buses."

Intentionally excluded:
* Old/random drivers I didn't recognize
* Old hardware in general
* Use of "busses" in code as identifiers

No functional change.

http://grammarist.com/spelling/buses-busses/

PR: 216099
Reported by: bltsrc at mail.ru
Sponsored by: Dell EMC Isilon

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.

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 missing .It in list tag.

MFC after: 3 days

Sweep formatting and assorted fixes.

Mechanically kill hard sentence breaks and double whitespaces.

Mdoc Janitor:

* Use 'manual' instead of 'man' for consistency.

Add a manpage for BUS_CONFIG_INTR.

Reminded by: eivind