{   The purpose of this request is to save a label for an attached permanent
{ file.  The label specified with this request replaces any label previously
{ saved for the file.  This request will only be processed for a user having
{ CONTROL permission to the file.
{
{       PFP$SAVE_FILE_LABEL (APFID, P_FILE_LABEL, STATUS)
{
{ APFID: (input) This parameter specifies the attached permanent file
{       identifier of the file for which a label is to be saved.
{
{ P_FILE_LABEL: (input) This parameter specifies the label that is to be saved
{       for the file.
{
{ STATUS: (output) This parameter returns the request status.
{
{       CONDITIONS: pfe$catalog_full
{                   pfe$invalid_apfid
{                   pfe$nil_pointer
{                   pfe$pf_system_error
{                   pfe$usage_not_permitted
{                   pfe$user_not_permitted
{
{       IDENTIFIER: pfc$permanent_file_manager_id
{
