Use log.critical instead of log.fatal (which does not exist).
Use log.critical instead of log.fatal (which does not exist).

Signed-off-by: James McCoy <91ae71a1168cea0b65ac9975da69d5a7753116be@users.sourceforge.net>

haxwithaxe/supybot,Ban3/Limnoria,jeffmahoney/supybot,ProgVal/Limnoria-test,Ban3/Limnoria,buildbot/supybot,ProgVal/Limnoria-test,frumiousbandersnatch/supybot-code