[tz] Astrakhan region got approval to change its time zone

[Garrett Wollman]

<<On Tue, 16 Feb 2016 16:26:43 -0800, Paul Eggert <eggert at cs.ucla.edu> said:

>> What would be the consequence of just removing the column entirely? 
>> (ok, maybe too drastic, but just for discussion)

> strftime %Z would stop working, and lots of old and/or questionable code 
> would stop working.

And a few million people who live in areas where these abbreviations
matter would get rightly pissed off, although it might take them a
while to notice, because the vendors would probably fork tzdata at
that point rather than deal with the hassle.

-GAWollman