Remove $FreeBSD$: two-line nroff pattern

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

Add a -q flag to ministat to suppress headers in output, for use with -n.

Reviewed by: jrtc27
Differential Revision: https://reviews.freebsd.org/D33724
MFC after: 2 weeks

Clarify the ministat default width

The man page states that:
'-w width Width of ASCII-art plot in characters, default is 74.'

This is not entirely correct. The mini-help is more accurate:
'-w : width of graph/test output (default 74 or terminal width)'

In other words: the man page fails to explain that ministat will default
to the terminal width, not 74. It will only fall back to 74 if stdout is
not a TTY.

Submitted by: Ben Hutchings <ben@decadent.org.uk>
Approved by: philip (mentor)

Add option to suppress just the plot in ministat while still retaining
the relative comparison (i.e., useful part).

Approved by: cperciva
MFC after: 3 days

Remove trailing whitespace per mdoc lint warning

Disussed with: gavin
No objection from: doc
Approved by: joel
MFC after: 3 days

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Make the second example command more closely match the demo output, and as
a side effect more clearly show the change in command lines between the
first and second example invocations.

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.

Fix apparent typo. The permitted confidence values include 95%, not 85%.

Pull ministat into the installed system and write it a man-page.

(Repocopied from src/tools/tools/ministat)