purge: prevent a silly crash with --confirm --files
if --files is passed, there was no directory to checks and `msg` was undefined.
This is now fixed and tested.
fixbundle(){ grep -v 'saving bundle'| grep -v 'saved backup'|\ grep -v added | grep -v adding |\ grep -v "unable to find 'e' for patching"|\ grep -v "e: No such file or directory"|\ cat}