ADAORD reorder with FILE= and no other parms should be an error

ADAORD REORASSO FILE=123

is a valid request that will simply reorder the entire associator - the "FILE=" parameter, while appearing to apply only to one file, actually does nothing, unlike the similar

ADAORD REORFASSO FILE=123

which reorganizes just the associator for file 123.

Perhaps a message could be added to the REOR{ASSO|DATA} functions that FILE= requires at least one additional sub-parameter to be effective?