Remove $FreeBSD$: one-line sh pattern

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

Fix hand-rolled METALOG entries for installconfig during distributeworld

During distributeworld we call distribute on subdirectories, which in
turn calls installconfig. However, this recursive installconfig call
appends the distribution name (in these cases, "base") to DESTDIR. For
install(1) this works fine as its -D argument comes from the top-level
Makefile.inc1, which passes the original DESTDIR, thereby resulting in
the METALOG entry having the distribution name as a prefix representing
its true installed path relative to the root, but for the hand-rolled
entries they do not use install(1) and thus do not have access to what
the original DESTDIR was, resulting in the METALOG missing this prefix.

Thus, pass down the name of the distribution via a new variable DISTBASE
(chosen as Makefile.inc1 already uses that to convey this exact same
information to etc's distrib-dirs during distributeworld) and prepend
this to the handful of manually-generated METALOG entries. For the
installworld case this variable will be empty and so this behaves as
before.

Note that we need to be careful to avoid double slashes in the METALOG;
distributeworld uses find | awk to split the single METALOG up into
multiple dist.meta files, and this relies on the paths in the METALOG
having the exact prefix ./dist (or ./dist/usr/lib/debug).

Reviewed by: brooks, emaste
Differential Revision: https://reviews.freebsd.org/D33997

Normalize deployment tools usage and definitions by putting into one place
instead of sprinkling them out over many disjoint files. This is a follow-up
to achieve the same goal in an incomplete rev.348521.

Approved by: imp
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D20520

pkgbase: Put a lot of binaries and lib in FreeBSD-runtime

All of them are needed to be able to boot to single user and be able
to repair a existing FreeBSD installation so put them directly into
FreeBSD-runtime.

Reviewed by: bapt, gjb
Differential Revision: https://reviews.freebsd.org/D21503

Fix several places where tool name has been hardcoded:

install -> ${INSTALL}
mtree -> ${MTREE_CMD}
services_mkdb -> ${SERVICES_MKDB_CMD}
cap_mkdb -> ${CAP_MKDB_CMD}
pwd_mkdb -> ${PWD_MKDB_CMD}
kldxref -> ${KLDXREF_CMD}

If you do custom FreeBSD builds you may want to override those
in some cases.

Sponsored by: Sippy Software, Inc.

Move services to usr.sbin/services_mkdb/

This is pkgbase related as it switches to CONFS to properly tag this as a
config file.

Approved by: will (mentor)
Differential Revision: https://reviews.freebsd.org/D16848

Replace fparseln(3) with getline(3) to remove dependency on libutil

Convert usr.sbin to LIBADD
Reduce overlinking

More -Wmissing-variable-declarations fixes.

In addition to adding missing `static' keywords:
- bin/dd: Pull in `extern.h' to guarantee consistency with source file.
- libexec/rpc.rusersd: Move shared globals into an extern.h.
- libexec/talkd: Move `debug' and `hostname' into extern.h.
- usr.bin/cksum: Put counters in extern.h, as they are used by ckdist/mtree.
- usr.bin/m4: Move `end_result' into extern.h.
- usr.sbin/services_mkdb: Move shared globals into an extern.h.

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

MFC r206156, r206159, r206163: services_mkdb; generate db file
from services(5) to increase speed of getserv*()

services_mkdb; generate db file from services(5) to increase
speed of getserv*()

Obtained from: NetBSD
MFC after: 2 weeks