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)

Split the contributed code from libc/stdtime from lib/libc/stdtime
to contrib/tzcode/stdtime.

From contrib/tzcode:
The Makefiles are leftovers from the copies and should live in usr.sbin/zic/*

From usr.sbin/zic:
The sources are from a vendor contributed source, therefore should
live in contrib/tzcode/zic.

The last big commit: let usr.sbin/ use WARNS=6 by default.

Normalize MAN.

style.Makefile(5)

Perform a major cleanup of the usr.sbin Makefiles.
These are not perfectly in agreement with each other style-wise, but they
are orders of orders of magnitude more consistent style-wise than before.

Back out WARNS cleanup: this is apparently vendor code, even though
most of the files aren't on the vendor branch.

Submitted by: wollman

Constify, add some prototypes, and set WARNS=2.

Submitted by: Mike Barcroft <mike@q9media.com>

- Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.

Set the default manual section for usr.sbin/ to 8.

$Id$ -> $FreeBSD$

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.

Merge from vendor branch. We are now completely up-to-date with
respect to the ADO timezone code.

FreeBSD port of timezone code.