[Casper] "du: : No such file or directory" in backup emails

[Justin Crowe]

We have setup the backup schedule in the JSS Setup Utility to send  
emails when the backups are complete.  We also have it set to save x  
amount of days of backups.  But, when the emails come out, under the  
section with the previous backups we see these messages:


du: : No such file or directory		2009-07-28_02-00-00.sql.gz
du: : No such file or directory		2009-07-24_16-08-05.sql.gz

Is this a bug or are we doing something wrong?  Has anyone else seen  
this behavior?

Justin