MFC of r197597, r198270, r198515:

MFC of r197597, r198270, r198515:

MFC of tzdata2009n:
- Pakistan will go out DST on 1 October.
- Headsup for changes in Argentina.

MFC of tzdata2009o:
- Somoa has not moved to DST this year (comment only)
- Bangladesh stays on DST for now.
- Pakistan went back to standard time in 1 October 2009

MFC of tzdata2009p:
- Argentina does not go to DST this year.

Approved by:	re (Ken Smith)

git-svn-id: svn://svn.freebsd.org/base/stable/8@198555 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f