Remove $FreeBSD$: two-line nroff pattern

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

rmextattr(8) man page clarifications regarding -qq

Reviewed by: ngie
MFC after: 6 days
X-MFC-With: 299085
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D6422

Allow setextattr(8) to take attribute values from stdin

Add the -i option to setextattr. This option allow extended attribute data
to be provided via stdin. Add a -qq option to getextattr, which omits the
trailing newline. Together these options can be used to work with extended
attributes whose values are large and/or binary.

usr.sbin/extattr/Makefile:
Link against libsbuf which is used for processing stdin data.

usr.sbin/extattr/rmextattr.8:
Document setextattr's -i option, getextattr's -qq option, and remove
the BUG about setextattr only being useful for strings.

usr.sbin/extattr/rmextattr.c:
For setextattr operations, buffer attribute data in an sbuf. If -i
is specified, pull the data from stdin, otherwise from the
appropriate argurment.

Update usage text and argument validation code for setextattr's -i
option.

usr.sbin/extattr/tests/extattr_test.sh
Add tests for -q and -i.

Reviewed by: wblock (manpage)
MFC after: 4 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D6090

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.

mdoc(7) police: Scheduled sweep.

Document the -n option and fix manpage Fl usage.

Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories

Add -h flags to each of the *extattr(8) commands, indicating that
the command should not follow the symlink if the target file is a
symlink. Invoke the extattr_*_link(2) version of the system call
in that situation, instead of extattr_*_file(2). This is
consistent with other attribute management tools in the system.

Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories

Add the new userland tool for manipulating extended attributes.

This will replace the existing getextattr(8) and setextattr(8) with
a single binary responding to the names getextattr, setextattr,
rmextattr and lsextattr.

This program is not yet connected to the build.

Sponsored by: DARPA and NAI Labs.