Fix error in format() conversion in plugins/__init__.py
Fix error in format() conversion in plugins/__init__.py

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