{   The purpose of this request is to remove the master catalog for the
{ specified family from the specified set.  This request may be issued by
{ a system administrator or the owner of the set, but only when all files
{ and subcatalogs registered in the master catalog have been purged.
{
{       PFP$PURGE_MASTER_CATALOG (SET_NAME, FAMILY_NAME, MASTER_CATALOG_NAME,
{                                   STATUS)
{
{ SET_NAME: (input) This parameter specifies the set name from which the
{       master catalog is to be purged.  A blank name is not allowed.
{
{ FAMILY_NAME: (input) This parameter specifies the name of the family for
{       which a master catalog is to be purged.  If this parameter is all
{       blanks, the family name of the job making the request will be used.
{
{ MASTER_CATALOG_NAME: (input) This parameter specifies the name of the
{       master catalog that is to be purged.  Be convention, the name of
{       a user's master catalog is the same as the user name.  If this
{       parameter is all blanks, the user name of the job making the request
{       will be used.
{
{ STATUS: (output) This parameter specifies the request status.
{
{        CONDITIONS: pfe$pf_system_error
{                    pfe$catalog_not_empty
{                    pfe$bad_set_name
{                    pfe$bad_family_name
{                    pfe$bad_master_catalog_name
{                    pfe$unknown_set
{                    pfe$unknown_family
{                    pfe$unknown_master_catalog
{                    pfe$not_family_owner
{
{        IDENTIFIER: pfc$permanent_file_manager_id
{
