Fix bug #1027279, $randomnick should not return msg.nick
Fix bug #1027279, $randomnick should not return msg.nick

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