Fixes #3633 - Prevent rudder-agent postinst to chmod nonexistent files in /var/rudder//cfengine-community/ppkeys
Merge pull request #65 from nperron/bug_3633/dev/prevent_postinst_to_chmod_nonexistent_files

Fixes #3633 - Prevent rudder-agent postinst to chmod nonexistent files in /var/rudder/cfengine-community/ppkeys