{
{   The purpose  of  this  request  is  to  get  the  description of a command
{ language file reference.
{
{       CLP$GET_PATH_DESCRIPTION (FILE, FILE_REFERENCE, PATH_CONTAINER, PATH,
{         CYCLE_SELECTOR, OPEN_POSITION, STATUS)
{
{ FILE: (input)  This  parameter specifies the file whoose path description is
{       to be obtained.
{
{ FILE_REFERENCE: (output) This parameter specifies the  absolute  path  name,
{       size of the path name and validation ring for the file reference.  The
{       validation ring is the execution ring  in  which  the  file  reference
{       first  appeared  and  can be used by privileged processes to determine
{       appropriate access to the file.
{
{ PATH_CONTAINER: (output) This parameter specifies the storage area  for  the
{       path.   The array of path elements is placed in this area and the PATH
{       paraeter is set to point to the array.
{
{ PATH: (output) This parameter specifies the path through  the  hierarchy  of
{       catalogs  and  files  that  represents the item designated by the file
{       reference.  The first entry in this array is set to the family name of
{       the  owner  of  the file/catalog being referenced (if specified in the
{       reference as $FAMILY, the current family name  is  substituted).   The
{       second entry in this array is set to the user name of the owner of the
{       file/catalog being referenced (if specified in the reference as $USER,
{       the  current  user name is substituted).  The last entry in this array
{       specifies the file/catalog being referenced.  Entries between the user
{       and last entries, if any, designate subcatalogs.
{       NOTE that if the first entry in this array is $LOCAL,  then  the  path
{       designates  either  the  job's  $LOCAL  catalog  or a file within that
{       catalog.
{
{ CYCLE_SELECTOR: (output) This parameter specifies  the  cycle  of  the  file
{       being referenced.
{
{ OPEN_POSITION:  (output)  This  parameter  specifies the open position to be
{       used for the file being referenced.
{
{ STATUS: (output) This parameter specifies the request status.
{       CONDITIONS: none
{       IDENTIFIER: 'CL'
{
