Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

less: Re-enable -Wdeprecated-non-prototype warnings.

These were fixed in the most recent update to contrib/less.

less: Silence -Wdeprecated-non-prototype warnings.

This has an active upstream so will presumably be fixed upstream at
some point.

Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D39525

Adopt SRCTOP in usr.bin

Prefer ${SRCTOP}/foo over ${.CURDIR}/../../foo and ${SRCTOP}/usr.bin/foo
over ${.CURDIR}/../foo for paths in Makefiles.

Differential Revision: https://reviews.freebsd.org/D9932
Sponsored by: Netflix
Silence on: arch@ (twice)

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.

Hook lessecho(1) to build.

Start the dreaded NOFOO -> NO_FOO conversion.

OK'ed by: core

Fixed some style bugs. Apart from formatting bugs, MANDEPEND is deprecated
and $< and $@ are even documented as deprecated.

bmake glue for less.

Reviewed by: peter