Purge more stray embedded $FreeBSD$ strings

These do not use __FBSDID but instead use bare char arrays.

Reviewed by: imp, emaste
Differential Revision: https://reviews.freebsd.org/D41957

spdx: initial adoption of licensing ID tags.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

Initially, only tag files that use BSD 4-Clause "Original" license.

RelNotes: yes
Differential Revision: https://reviews.freebsd.org/D13133

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.

o Fix usage().
o Explicitly initialize domain pointer.
o Fix passwd file parsing.

PR: bin/39671 (3)
MFC after: 2 weeks

o __P removal
o use Ansi-style function definitions

$Id$ -> $FreeBSD$

Fixed printf format errors.

Cosmetic in usage string.

Cosmetics in usage() and man page.

compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Nuke a couple of useless lines of code from the /etc/netid parsing
section. (Cut & paste-o.)

Include <sys/types.h> before including <grp.h> so that this doesn't
depend on <stdio.h> bogusly including <sys/types.h>

Reordered includes to satisfy KNF rules.

Improve performance with very large user databases by increasing
hash table size from 256 to 1024.

Generate output that looks more like the SunOS mknetid: uses a space
instead of tabs for white space.

Fix typo in comment in hash.h: Groupit -> Groupid.

(This import had better work correctly or so help me I'll move to
the Himalayas and become a hermit.)

Import new mknetid program. This replaces the crufty, soon to be defunct
mknetid script packaged with ypserv.

This program parses the group, passwd, hosts and netid databases into
the netid.byname map. Duplicate checking is performed using hash tables.
Testing on my 486DX2/66 with FreeBSD 2.1.0 showed that this program can
process a 30,000-entry passwd database into a netid map (along with
assorted group and hosts information) in about 22 seconds. On my SPARC IPX
with SunOS 4.1.3, it takes about 15 seconds. This compares favorably with
the SunOS mknetid program, which parses the same database(s) in 13 seconds.
(With smaller databases, my program is actually slightly faster. Go
figure.)