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)

Fix a typo: "the give login class" to "the given login class."

PR: 75577
Submitted by: Nobuyuki Koganemaru

Mechanically kill hard sentence breaks.

The .Fn function

mdoc(7) police: Use the new .In macro for #include statements.

mdoc(7) police: protect trailing full stops of abbreviations
with a trailing zero-width space: `e.g.\&'.

Remove whitespace at EOL.

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

Introduce .Lb macro to libutil manpages
Sort .Nm values in some manpages
Remove explicit note about compiling with -lutil, it's implicitly
declared by .Lb macro now.

Add the "use -lutil" line to all functions that require it so people like
Dan Papsian <bugg@bugg.strangled.net> don't anger wpaul and myself with
silly linking errors.

Reviewed by: chris

mdoc(7)'fy

Reviewed by: mpp

$Id$ -> $FreeBSD$

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Minor mdoc style fixes.

Library functions relating to the login class capabilities database,
including manpages.
See also login_cap.h.