This RMU command is used to modify some attributes of an existing
    logical area. It cannot be used to add or delete a logical area.
    This command can be used to correct the record length, thresholds
    and name of a logical area described by an AIP entry. It can also
    be used to rebuild the SPAM pages for a logical area stored in
    UNIFORM page format areas so that threshold settings for a page
    correctly reflect the definition of the table.

    See also the RMU Repair Spam command for information on
    rebuilding SPAM pages for MIXED areas.