the predecessor for script !AD is not a user-provided name

    Explanation: The predecessor for a script was not a user-provided
    name. This message can occur during the SHOW subcommand when
    the /COMMAND_LINE qualifier is present. Because script names
    beginning with DFG$ are reserved for the DEFRAGMENT software,
    they are never listed when the /COMMAND_LINE qualifier is used.
    This warning message indicates the script whose predecessor was
    not listed.

    User Action: If the output of the SHOW subcommand was directed
    to a file, edit the file and name the script to be used as a
    predecessor using the /SCRIPT qualifier. Then, modify the script
    listed in this message so the /PREDECESSOR qualifier indicates
    the script name used.