Update src/Util.php

Author: lodev09

src/Util.php

@@ -126,6 +126,7 @@ public static function get($field, $source = null, $default = null, $possible_va
      */
     public static function get_options($config, &$message = null) {
         if (!$config) return [];
+        if (is_string($config)) $config = [$config];
 
         $config[] = 'help::';