{ }
{   The purpose of this request is to obtain a signal from the mainframe
{ signal list.
{
{       TMP$FIND_MAINFRAME_SIGNAL (GTID, SIGNAL_FOUND, SIGNAL)
{
{ GTID: (input) This parameter specifies the global task id of the
{       owner of the signal to be found.
{
{ SIGNAL_FOUND: (output) This parameter specifies whether a signal
{       was found in the mainframe signal list.
{
{ SIGNAL: (output) This parameter specifies the returned signal.
{
