{
{   The purpose of this request is to clear the file_lock set by an earlier}
{ amp$lock_file request. This request may only be issued by the task which}
{ issued the amp$lock_file request. Otherwise an abnormal STATUS will be}
{ returned and the request will be ignored.}
{   If the file_lock is not currently set, an abormal STATUS will be returned}
{ and the request will be ignored.}
{
{       AMP$UNLOCK_FILE (FILE_IDENTIFIER, STATUS)
{
{ FILE_IDENTIFIER: (input) This parameter specifies the file access
{       identifier established when the file was opened.
{
{ STATUS: (output)  This parameter specifies the request status.
{       CONDITION:  ame$ring_validation_error,
{       IDENTIFIER: amc$access_method_id.
{

