Make the out file name pattern work as expected.

The custom output file masks do not work. If I pick a predefined option like PROC_*.* it works as expected. I get "PROC_oldfilename.JPG". However, when I try my own pattern by just shifting the wildcard to the front like *_PROC.* the output file is simply "_PROC.JPG", not "oldfilename_PROC.JPG".