[tz] zone.tab comment for Asia/Irkutsk

[Tobias Conradi]

Current:

tzdata2012c\zone.tab
"Moscow+05 - Lake Baikal"

tzdata2012c\europe
# From Oscar van Vlijmen (2001-08-25): [This region consists of]
# Respublika Buryatiya, Irkutskaya oblast',
# Ust'-Ordynskij Buryatskij avtonomnyj okrug.

http://en.wikipedia.org/wiki/Ust-Orda_Buryat_Okrug
"Ust-Orda Buryatia, is an administrative division of Irkutsk Oblast"
" It was a federal subject of Russia (an autonomous okrug of Irkutsk
Oblast) from 1993 to January 1, 2008, when it merged with Irkutsk
Oblast (it also had autonomous okrug status from September 26, 1937 to
1993"

Propose:
zone.tab
"Moscow+05 - Irkutsk, Buryatia"

europe
Add a notice of merge.

Reasoning:
"Irkutsk, Buryatia" refers to federal subjects (1st level country
subdivisions), while "Lake Baikal" to a lake only. But the zone covers
the area of the two federal subjects. Do it similar to the 2nd level
country subdivision comments for these US zones:

America/Kentucky/Monticello	Eastern Time - Kentucky - Wayne County
America/Indiana/Indianapolis	Eastern Time - Indiana - most locations
America/Indiana/Vincennes	Eastern Time - Indiana - Daviess, Dubois,
Knox & Martin Counties
America/Indiana/Winamac	Eastern Time - Indiana - Pulaski County
America/Indiana/Marengo	Eastern Time - Indiana - Crawford County
America/Indiana/Petersburg	Eastern Time - Indiana - Pike County
America/Indiana/Vevay	Eastern Time - Indiana - Switzerland County

-- 
Tobias Conradi
Rheinsberger Str. 18
10115 Berlin
Germany

http://tobiasconradi.com/