At the tail end of the diff, in the context, it says:
# I found there are some mistakes for the historial DST rule for Hong
# Kong. Accoring to the DST record from Hong Kong Observatory (actually,
Should that be 'historical' and 'According'?
Below find a first pass at changes to "zone.tabb" and "asia" to handle Uyghur variants of time in China.
[...snip...]
+ 6:00 PRC XIN%sT # Xinjiang Time
+
# From Lee Yiu Chung (2009-10-24):
# I found there are some mistakes for the historial DST rule for Hong
# Kong. Accoring to the DST record from Hong Kong Observatory (actually,