Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Apply some style(9) to pthread tests

Reported by: kib
Fixes: ef135466f81b ("Clean up warnings in pthread tests")
Sponsored by: The FreeBSD Foundation

Clean up warnings in pthread tests

I intend to move these into lib/libthr/tests/ and connect to kyua. This
is a first step to address warnings emitted when building using standard
make infrastructure.

Reviewed by: markj
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D34306

Add missing header needed by sleep(3).

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.

initialize mutex and cv.

Fix spelling.

Add a test for pthread's cv and cancellation.