Comment 6 for bug 603906

It doesn't matter if translators do try to maintain the double space, but sure, remove it if you like.

Example references for why the period should stay inside the brackets:
http://www.chicagomanualofstyle.org/CMS_FAQ/Punctuation/Punctuation31.html
http://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style#Sentences_and_brackets
http://wps.ablongman.com/long_faigley_penguinhb_1/7/1978/506571.cw/