Issue #1079214 follow-up by pillarsdotnet: Adjustment to drupal_goto() doc example.

includes/common.inc

@@ -632,8 +632,8 @@ function drupal_encode_path($path) {
  * user/login and override the default redirection so that the user is
  * redirected to a specific path after logging in:
  * @code
- *   $destination = array('destination' => "node/$node->nid");
- *   l(t('Log in'), array('@login' => url('user/login', array('query' => array($destination)))));
+ *   $query = array('destination' => "node/$node->nid");
+ *   $link = l(t('Log in'), 'user/login', array('query' => $query));
  * @endcode
  *
  * Drupal will ensure that messages set by drupal_set_message() and other