Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

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

Copy lib/libc/stdtime to contrib/tzcode/stdtime for the proper split
of contributed code and FreeBSD specific code.

MFV of tzdata2009t, r200831

zic:
- Fix URL / reference to Calendrical Calculations: Third Edition

libc/stdtime:
- Fix typo in tzfile.5 (no changes in our part)

MFC after: 1 week

MFV of tzcode2009e:

Upgrade of the tzcode from 2004a to 2009e.

Changes are numerous, but include...

- New format of the output of zic, which supports both 32 and 64
bit time_t formats.

- zdump on 64 bit platforms will actually produce some output instead
of doing nothing for a looooooooong time.

- linux_base-fX, with X >= at least 8, will work without problems related
to the local time again.

The original patch, based on the 2008e, has been running for a long
time on both my laptop and desktop machine and have been tested by
other people.

After the installation of this code and the running of zic(8), you
need to run tzsetup(8) again to install the new datafile.

Approved by: wollman@ for usr.sbin/zic
MFC after: 1 month

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

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

Make the quotes in the #include line visible.

$Id$ -> $FreeBSD$

Merge from vendor branch: timezone file structure changes and doco.
Fix localtime.c to deal with new magic number field.

Obtained from: ftp://elsie.nci.nih.gov/pub/tzcode1999a.tar.gz

Remove 'of type long' from a sentence talking about four 4-byte values
because that is wrong on alpha.

Correct some man page cross references and file location references.

Convert "time zone" to "timezone" in section NAME
Submitted by: brien@cs.ucdavis.edu (David E. O'Brien)

Use latest Arthur Olson timezone code rather than that supplied with
4.4. The code is almost identical to the 4.4 versions, but this organization
should make it easier to merge new versions in the future.

This commit was generated by cvs2svn to compensate for changes in r2708,
which included commits to RCS files with non-trunk default branches.

The rest of tzcode94g from Arthur David Olson.

Obtained From: Arthur David Olson, ftp://elsie.nci.nih.gov/pub/tzcode94g.tar.gz