Tell dcs to ignore deprecation message

includes/tuque_wrapper.inc

@@ -254,6 +254,7 @@ class IslandoraFedoraObject extends FedoraObject {
     }
     catch (Exception $e) {
       if ($e instanceof DatastreamExistsException && variable_get('islandora_deprecation_return_false_when_datastream_exists', TRUE)) {
+        // @codingStandardsIgnoreLine
         @trigger_error('Expecting FALSE on ingestDatastream failing is deprecated in islandora:7.x-1.10. Throwing an EXCEPTION on failed datastream ingest will be the norm in future. See https://jira.duraspace.org/browse/ISLANDORA-1995.', E_USER_DEPRECATED);
         $message_error = format_string('The datastream @dsid already exists on the object: @pid.', array(
           '@dsid' => $datastream->id,