cron spam about directories under public_html/ddebs

Hi,

We're seeing these kind of cron spams on a regular basis, any chance we could fix it up?

| /etc/cron.daily/launchpad-buildd:
| rm: cannot remove `/home/buildd/public_html/ddebs/20131208': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20131123': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20131022': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20140715': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20131026': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20131206': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20140223': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20131114': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20131023': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20140215': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20140511': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20140730': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20131228': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20131011': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20140601': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20131223': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20140629': Is a directory
| rm: cannot remove `/home/buildd/public_html/ddebs/20131222': Is a directory

The cron.daily/launchpad-buildd script should probably either have the find exclude directories or rm to also remove directories.

| hloeung@kishi21:~$ apt-cache policy launchpad-buildd
| launchpad-buildd:
| Installed: 125
| Candidate: 125

Thanks,

Haw