Remove $FreeBSD$: one-line bare tag

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

- add a missing "be" and "in"
- fix other errors introduced when committing r226436
- add 'function' to a sentence where it makes sense

Submitted by: delphij
Submitted by: dougb
Submitted by: jhb
Approved by: dougb
Approved by: jhb

- change "is is" to "is" or "it is"
- change "the the" to "the"

Approved by: lstewart
Approved by: sahil (mentor)
MFC after: 3 days

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.

Spelling.

BSD 4.4 Lite Usr.bin Sources