[Systems] cron churn

[Bernie Innocenti]

I cleaned up the various sources of cron mail that were spamming the
systems-logs@ list.

The source of most errors was beamrider, a clone of sunjammer which I
have just upgraded to Jaunty.

-- 
   // Bernie Innocenti - http://codewiz.org/
 \X/  Sugar Labs       - http://sugarlabs.org/