MQROUTE_* (Trace-route Forwarding (MQIACF_ROUTE_FORWARDING))

See:

MQROUTE_FORWARD_ALL 256 X'00000100'
MQROUTE_FORWARD_IF_SUPPORTED 512 X'00000200'
MQROUTE_FORWARD_REJ_UNSUP_MASK -65536 X'FFFF0000'