Don't warn user that excluded folders couldn't be processed

[Michael Terry]

From Jason Kennaly (in question https://answers.launchpad.net/deja-dup/+question/221322):

As I indicated in this thread, http://ubuntuforums.org/showthread.php?p=12497422&posted=1#post12497422

I am using this to back up my home directory in Ubuntu 12.10. There is a subdirectory called .gnupg. This subdirectory is owned by root. This directory is excluded from being backed up.

Every time Deja Dup runs, I get an error message that this directory could not be processed.This is fine, I do not need it backed up, but it is frustrating that I get this error message even though this directory is excluded from the backup.

Helpful information:

~$ ls -ld .gnupg | grep gnupg
drwx------ 2 root root 4096 Apr 18 2012 .gnupg
~$ deja-dup --version
deja-dup 24.0
~$ duplicity --version
duplicity 0.6.19

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.