Remove $FreeBSD$: two-line nroff pattern

Remove /^\.\\"\n\.\\"\s*\$FreeBSD\$$\n/

Fix mld6query(8) and add a new -g option

The mld6query command relies on KAME behaviour which allows the
ipv6mr_multiaddr member of the request object in a IPV6_JOIN_GROUP
setsockopt() call to be INADDR6_ANY. The FreeBSD stack doesn't allow
this, so mld6query has been non-functional.

Also, add a -g option which sends a General Query (query INADDR6_ANY)

Reviewed by: sbruno, mmacy
Sponsored by: Limelight Networks
Differential Revision: https://reviews.freebsd.org/D15384

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.

- rename the RETURN VALUES section to EXIT STATUS
- not bumping a date as this is not a real content change

Approved by: ru
MFC after: 3 days

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

Fixed the misplaced $FreeBSD$.

The .Nm utility

Remove whitespace at EOL.

mdoc(7) police: removed HISTORY info from the .Os call.

Sync with recent KAME.
This work was based on kame-20010528-freebsd43-snap.tgz and some
critical problem after the snap was out were fixed.
There are many many changes since last KAME merge.

TODO:
- The definitions of SADB_* in sys/net/pfkeyv2.h are still different
from RFC2407/IANA assignment because of binary compatibility
issue. It should be fixed under 5-CURRENT.
- ip6po_m member of struct ip6_pktopts is no longer used. But, it
is still there because of binary compatibility issue. It should
be removed under 5-CURRENT.

Reviewed by: itojun
Obtained from: KAME
MFC after: 3 weeks

mld6query sends an IPv6 multicast listener discovery (MLD) query packet
toward the specified multicast address.

Obtained from: KAME