Added urllib.unquote to foldoc error message.
Added urllib.unquote to foldoc error message.

mazaclub/mazabot-core,frumiousbandersnatch/supybot-code,haxwithaxe/supybot,Ban3/Limnoria,ProgVal/Limnoria-test,kblin/supybot-gsoc,jeffmahoney/supybot,Ban3/Limnoria,mazaclub/mazabot-core,buildbot/supybot,ProgVal/Limnoria-test,raboof/supybot,prashantpawar/supybot-rothbot