{
{        This request empties a system buffer.
{
{  BAP$EMPTY_SB (KFT_DESCRIPTOR,SBD_PTR,STATUS)
{
{    KFT_DESCRIPTOR : (input) this parameter specifies the known
{                      file name table entry.
{
{    SBD_PTR : (input) this parameter specifies a pointer to the system
{               buffer descriptor of the system buffer to empty.
{
{    STATUS : (output) this parameter specifies request status.
{
