Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

mdoc: order prologue macros consistently by Dd/Dt/Os

Although groff_mdoc(7) gives another impression, this is the ordering
most widely used and also required by mdocml/mandoc.

Reviewed by: ru
Approved by: philip, ed (mentors)

-mdoc sweep.

Document recently added security.mac.seeotheruids.suser_privileged sysctl.

Mechanically kill hard sentence breaks and double whitespaces.

Add or correct section number in .Xr

Assorted mdoc(7) fixes.

Kill whitespace at EOL.

Approved by: re (blanket)

Document the new mac_portacl(4) policy.

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

Update cross-references to include mac(4).

Sponsored by: DARPA, Network Associates Laboratories

o Refer to "Network Associates Laboratories" instead of "NAI Labs" or
"Network Associates Labs" in the copyright notice.
o Remove clause #3 in the license terms.
o Remove the line break from my name.

Sponsored by: DARPA, Network Associates Laboratories

Cross-reference mac_lomac.4

Sponsored by: DARPA, Network Associates Laboratories

Document the following MAC policies:
o ifoff: Interface silencing policy
o partition: Process partitioning policy

Add associated Makefile entries and man page cross-references.

Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Labs
Approved by: re (blanket)

Document the following MAC policies:
o None: Stub policy
o Seeotheruids: The "see processes and sockets owned by other users" policy
o Test: Debugging policy

Standardize the SYNOPSIS and HISTORY sections.

Update SEE ALSO sections.