diff --git a/core/includes/form.inc b/core/includes/form.inc
index 86039cb..48697e8 100644
--- a/core/includes/form.inc
+++ b/core/includes/form.inc
@@ -2555,11 +2555,12 @@ function form_pre_render_color($element) {
 /**
  * Prepares variables for form templates.
  *
+ * Default template: form.html.twig.
+ *
  * @param $variables
  *   An associative array containing:
  *   - element: An associative array containing the properties of the element.
  *     Properties used: #action, #method, #attributes, #children
- *
  */
 function template_preprocess_form(&$variables) {
   $element = $variables['element'];
diff --git a/core/modules/system/templates/form.html.twig b/core/modules/system/templates/form.html.twig
index 6564ed5..b95fe71 100644
--- a/core/modules/system/templates/form.html.twig
+++ b/core/modules/system/templates/form.html.twig
@@ -5,13 +5,11 @@
  *
  * Available variables
  * - attributes: A list of HTML attributes for the wrapper element.
- * - children: The rendered checkboxes.
+ * - children: The child elements of the form.
  *
  * @see template_preprocess_form()
  *
  * @ingroup themeable
  */
- @todo: remove this file once http://drupal.org/node/1819284 is resolved.
- This is identical to core/modules/system/templates/container.html.twig
 #}
 <form{{ attributes }}><div>{{ children }}</div></form>