{
{     The purpose of this request is to acknowledge an operator message and to
{ send a response to the message.
{
{       OFP$ACKNOWLEDGE_OPERATOR_MESSAGE (MESSAGE_ID, RESPONSE, STATUS)
{
{ MESSAGE_ID: (input) This parameter specifies the unique identifier of the
{       message being acknowledged.
{
{ RESPONSE: (input) This parameter specifies the response that was entered by
{       the operator.  If the operator acknowledged the message without
{       specifying a response message, the length of the string is 0.
{
{ STATUS: (output) This parameter specifies the request status.
{
{      CONDITION: ofe$acknowledgement_not_allowed
{                 ofe$invalid_message_id
{                 ofe$response_too_long
{
