Fixed the help for register.
Fixed the help for register.

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