{
{    The purpose of this request is to release a message.  The contents of the
{ message is discarded.
{
{    NOTE:  If the message identifier is invalid, a system error ('Buffer
{          Manager Caller') will occur.
{
{       NLP$BM_RELEASE_MESSAGE (MESSAGE_ID)
{
{ MESSAGE_ID: (input, output)  This parameter specifies the identifier of the
{       message to be released.  An invalid message identifier will be
{       returned.
{
