{
{    The purpose of this request is to find the next available "modified"
{  input file with the requested destination_usage.
{
{        QFP$ACQUIRE_MODIFIED_INPUT (JOB_DESTINATION_USAGE,
{              INPUT_DESCRIPTOR, STATUS);
{
{ JOB_DESTINATION_USAGE: (input) This indicates the destination_usage that
{        the file in the input queue must have.
{
{ INPUT_DESCRIPTOR: (output) This contains the information needed to dispose
{        of an input file.
{
{ STATUS: (output) This is the status of the request.
{      CONDITIONS:
{        jme$input_queue_is_empty

