{
{   This request adds a library to a utility's list of auxiliary libraries.
{ This list of libraries is searched as part of the command list entry for a
{ utility, however its contents are invisible to users of the utility (i.e.
{ none of the information displays divulge its existence, and calls to commands
{ in it are not logged).
{
{       CLP$ADD_AXUILIARY_UTILITY_LIB (UTILITY, LIBRARY, STATUS)
{
{ UTILITY: (input)  This parameter specifies the name of the utility to which
{       the library is to be added.
{
{ LIBRARY: (input)  This parameter specifies the object library to be added.
{       If this library has already been added via this request to the UTILITY,
{       no operation is performed.
{
{ CHECKOUT_LIBRARY: (input)  This parameter specifies an object library to be
{       added for purposes of checking out a new version of the LIBRARY.  If
{       this parameter is a blank or empty string, or has already been added
{       via this request to the UTILITY, or the command search mode is not
{       global, no operation is performed.
{
{ STATUS: (output)  This parameter specifies the request status.
{
