Issue #2056845 by StephaneQ | tstoeckler: Fixed Stale documentation in...

Issue #2056845 by StephaneQ | tstoeckler: Fixed Stale documentation in drupal_bootstrap() regarding DRUPAL_ROOT.

core/includes/bootstrap.inc

@@ -1752,8 +1752,7 @@ function drupal_anonymous_user() {
  *
  * In order to bootstrap Drupal from another PHP script, you can use this code:
  * @code
- *   define('DRUPAL_ROOT', '/path/to/drupal');
- *   require_once DRUPAL_ROOT . '/core/includes/bootstrap.inc';
+ *   require_once '/path/to/drupal/core/includes/bootstrap.inc';
  *   drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
  * @endcode
  *