{
{    This interface is used to change the name of an existing field in a
{ template file.
{
{       AVP$CHANGE_FIELD_NAME (FIELD_NAME, DESCRIPTION_RECORD_NAME,
{             NEW_FIELD_NAME, FILE_INFORMATION, STATUS);
{
{ FIELD_NAME: (input) Name of the field to be changed.
{
{ DESCRIPTION_RECORD_NAME: (input) Name of the description record containing
{       field to be changed.
{
{ NEW_FIELD_NAME: (input) New name for the field.
{
{ FILE_INFORMATION: (input, output) Record used by the template file manager to
{       hold information about the template file.
{
{ STATUS: (output) Variable in which the completion status is returned.
{       CONDITIONS:
{              ave$conflicting_lock
{              ave$field_already_exists
{              ave$field_was_deleted
{              ave$unknown_description_record
{              ave$unknown_field
{
