Remove $FreeBSD$: two-line nroff pattern

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

Reassign copyright statements on several files from Advanced
Computing Technologies LLC to Hudson River Trading LLC.

Approved by: Hudson River Trading LLC (who owns ACT LLC)
MFC after: 1 week

Fix various mdoc issues and some EOL whitespace.

Found with: mandoc -Tlint

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.

MFC 198085:
Add a manual page for BUS_BIND_INTR() and bus_bind_intr().

Oops, add a return values section to note that these routines return an error
on failure or zero on success.

Add a manual page for BUS_BIND_INTR() and bus_bind_intr().

MFC after: 1 week