TO OBTAIN AN XGP LISTING OF THE DOCUMENTATION FOR MRPP3,
DO THE FOLLOWING:  (1) RU MRPP3[XGP,REM]   (2) FOO←MRPP3.WRU[XGP,REM]
(3) (AFTER THE PROGRAM EXITS, HIT CARRIAGE RETURN)   (4) WALK OVER TO XGP
TO PICK UP THE LISTING AS IT COMES OUT.