Remove $FreeBSD$: one-line sh pattern

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

pkgbase: Put yellow pages programs to its own package

YP is less and less used, split them to users have the choice to not
install them.

MFC after: 2 weeks
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D33441

Utilize SYSROOT from r320119 in places where DESTDIR may be wanting WORLDTMP.

Since buildenv exports SYSROOT all of these uses will now look in
WORLDTMP by default.

sys/boot/efi/loader/Makefile
A LIBSTAND hack is no longer required for buildenv.

MFC after: 2 weeks
Sponsored by: Dell EMC Isilon

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

The SRCTOP conversion simplifies pathing in make/displayed output.

Also, while here, change a hardcoded path to ${RPCDIR}/ypupdate_prot.x in
the make targets with ${.ALLSRC} .

MFC after: 1 week
Sponsored by: Dell EMC Isilon

Convert usr.sbin to LIBADD
Reduce overlinking

NO_MAN= has been deprecated in favor of MAN= for some time, go ahead
and finish the job. ncurses is now the only Makefile in the tree that
uses it since it wasn't a simple mechanical change, and will be
addressed in a future commit.

Consistently set RPCGEN_CPP when running rpcgen, so the C preprocessor
set via ${CPP} is used, instead of always using hardcoded /usr/bin/cpp.

MFC after: 1 week

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.

The last big commit: let usr.sbin/ use WARNS=6 by default.

- Import the HEAD csup code which is the basis for the cvsmode work.

Start the dreaded NOFOO -> NO_FOO conversion.

OK'ed by: core

For variables that are only checked with defined(), don't provide
any fake value.

style.Makefile(5)

Perform a major cleanup of the usr.sbin Makefiles.
These are not perfectly in agreement with each other style-wise, but they
are orders of orders of magnitude more consistent style-wise than before.

$Id$ -> $FreeBSD$

Removed bogus dependencies of generated .c files on generated headers.

Fixed `make -jN' for large N, as usual.

Fixed DPADD.

Mind-o: MAN8= yes --> NOMAN= yes

Etched onto my brain with acid by: Mark Murray.

Import rpc.ypupdated.

This program still needs work but does compile and run. It also
needs a man page.