whole_func_string: function _taskFatalHandler_(e) {
              var err = e ? (e.stack || e.message || e) : 'Unknown Error';
              grunt.fatal(err, grunt.fail.code.TASK_FAILURE);
          }
func_code_string: function _taskFatalHandler_(e) {
              var err = e ? (e.stack || e.message || e) : 'Unknown Error';
              grunt.fatal(err, grunt.fail.code.TASK_FAILURE);
          }
func_documentation_string: We need a named function to check whether this is previously added. Bec. since this is a "multi" task, this handler will get added every time.