[docs] Typo in urllib2

[INADA Naoki]

I've found typo in urllib2. But bugs.python.org is down now.

http://docs.python.org/dev/library/urllib2.html#urllib2.OpenerDirector.open

-(if not specified, the global default timeout setting will be usedi).
+(if not specified, the global default timeout setting will be used).

# extra 'i'


-- 
INADA Naoki  <songofacandy at gmail.com>