remove cron from /var/log/auth.log

Every minute cron checks for something to do and my auth.log is filled with

 

Sep 2 23:52:01 LAMPP CRON: pam_unix(cron:session): session opened for user root by (uid=0) Sep 2 23:52:02 LAMPP CRON: pam_unix(cron:session): session closed for user root

 

This makes my logs rather hard to read when I am looking for information logged by ssh. I know this isn’t an intruder because you can only ssh into this computer from my my network and I would like my logs to be readable before I forward

http://ubuntuforums.org/showthread.php?t=1256801