Remove $FreeBSD$: one-line sh pattern

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

wlandebug: Add include path for libifconfig as it is a internallib

Reviewed by: bapt
Differential Revision: https://reviews.freebsd.org/D24172

Revert r344211: wlandebug: disable PIE to fix build failure

As of r344530 libifconfig is built as a standard INTERNALLIB and the
wlandebug PIE workaround from r344211 can be removed.

wlandebug: disable PIE to fix build failure

libifconfig is built as a static-only PRIVATELIB (and there is no _pie.a
version) so disable PIE in libifconfig's consumer.

Sponsored by: The FreeBSD Foundation

wlandebug(8): obtain original interface name via ifconfig_get_orig_name()

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.

Hook wlandebug up to the build.

This tool allows fine grained enabling of the debugging output in net80211 and
its useful to have it available to everyone to diagnose wifi issues.

Approved by: re (rwatson)

add man page

Style: NO_MAN doesn't need any value.

o move programs to separate directories and use stock Makefiles;
this simplifies including them in crunchgen images
o rename 80211* programs to wlan* as was originally intended