Private upload incorrectly thinks a .svn folder is a file

I have my Drupal project committed into SVN and the Private Upload module kept reporting something similar to:

There are '2' files in the private folder, and the DB thinks there are '1' private files.

I then found out I was getting this message because of my ".svn" folder in that directory. I've attached a patch that ignores the ".svn" directory but it might be best if Private Upload can ignore all directories in the private folder.

Thanks!