Werk #3: ps: Remove exceeding [ and ] in service description when using process inventory

When using the process inventory with regular expressions that contain groups, like "/sbin/getty .* (tty.)", the matched group is inserted as a replacement for %s in the service description. The bug resulted in additional brackets. It was "[tty2]" instead of just "tty2". This has been fixed.

To the list of all Werks