Messages Form rendering function missing

It seems that this necessary function is completely missing from the 3.x release. It is called on the Relationship Settings page and there is an error b/c the function is called but missing.

The first call to this function is in user_relationships_ui.forms.inc on line 42.

Here is the missing function which I found in the 2.x version. After I added it to the above file, everything seems to work fine.

/**
 * Helper function to build the settings form for the notification messages
 */
function _user_relationships_message_settings_form(&$form, $defaults = array()) {
  foreach ($defaults as $key => $value) {
    if (is_array($value)) {
      $form[$key] = array(
        '#type'         => 'fieldset',
        '#title'        => ucfirst(str_replace('_',' ',$key)),
        '#collapsible'  => TRUE,
        '#collapsed'    => TRUE
      );
      _user_relationships_message_settings_form($form[$key], $value);
    }
    else {
      $form["user_relationships_msg_{$key}"] = array(
        '#type'           => 'textfield',
        '#title'          => ucfirst(str_replace('_',' ',$key)),
        '#default_value'  => variable_get("user_relationships_msg_{$key}", $value)
      );
    }
  }
}