{   This procedure is called to reset a tape file to the beginning of the
{ first reel.
{
{   If the last operation on the current volume was a write, the volume will
{ be terminated by writing two tape marks before the rewind is performed.
{
{   Note that for labeled tapes the caller must ensure that all labels have
{ been written before calling this procedure.
{
{ NOTE:  Calling this procedure implicitly releases any tape block buffer
{       reservation.
{
{       BAP$TAPE_BM_REWIND(FILE_IDENTIFIER, FAILURE_MODES, STATUS)
{
{   FILE_IDENTIFIER (Input):  The file identifier for the file.
{
{  FAILURE_MODES:  (Output) Detailed information on any tape I/O error.
{
{  STATUS: (Output) Request status.
