[tz] Pakistan DST in 2002

[Matt Johnson]

The Pakistan rules for 2002 have the transition at 0:01 instead of 0:00.
This disagrees with the commentary:

# From Rives McDow (2002-03-13):
# I have been advised that Pakistan has decided to adopt dst on a
# TRIAL basis for one year, starting 00:01 local time on April 7, 2002
# and ending at 00:01 local time October 6, 2002.  This is what I was
# told, but I believe that the actual time of change may be 00:00; the
# 00:01 was to make it clear which day it was on.

The remaining rules in the file are at 0:00.

Also, our friends at timeanddate.com have it at midnight as well.
http://www.timeanddate.com/time/change/pakistan/karachi?year=2002

Of course, the problem with any fall-back transition after 0:00 and before
1:00 is that it implies the calendar date goes forward, then back, then
forward again.  In this case going from Oct 6, back to Oct 5, then forward
to Oct 6 again.  While there are indeed areas where this certainly occurred,
we should be careful not to introduce that artificially.  If there is
uncertainty between 0:00 and 0:01, we should assume 0:00 (IMHO).

Thanks,
Matt