diff --git a/core/includes/common.inc b/core/includes/common.inc
index 75c101f..917da41 100644
--- a/core/includes/common.inc
+++ b/core/includes/common.inc
@@ -7570,22 +7570,21 @@ function drupal_get_filetransfer_info() {
 }
 
 /**
- * #pre_render callback that will drupal_render() specified children to
- * become the value of another child.
+ * Pre-render callback: renders specified children as the value of another child.
  *
  * This function is meant for render array that uses #theme, allowing
  * arguments for that theme function to be renderable array.
  *
- * You have #map_childs, which key is the argument for #theme that you wish
- * its value to be rendered before hand. #map_childs values are children,
+ * You have #map_children, which key is the argument for #theme that you wish
+ * its value to be rendered before hand. #map_children values are children,
  * you can have more than one child, this will be merge in the call to
  * drupal_render_children().
  *
  * This is an example that produce <a><img></a>:
  * @code
  * $markup = array(
- *   '#pre_render' => array('drupal_pre_render_map_childs'),
- *   '#map_childs' => array(
+ *   '#pre_render' => array('drupal_pre_render_map_children'),
+ *   '#map_children' => array(
  *     // $markup['notatext'] is going to be rendered, which result is saved
  *     // in $markup['#text'], later we pass #text as the argument for theme_link().
  *     '#text' => array('nottext_markup'),
@@ -7612,14 +7611,14 @@ function drupal_get_filetransfer_info() {
  * @see drupal_render()
  *
  * @param $elements
- *   A structured array using the #map_childs key.
+ *   A structured array using the #map_children key.
  *
  * @return
- *   The passed-in elements, but has the values of each #map_childs rendered,
+ *   The passed-in elements, but has the values of each #map_children rendered,
  *   and saved as a child named with the key.
  */
-function drupal_pre_render_map_childs($element) {
-  foreach ($element['#map_childs'] as $key => $value) {
+function drupal_pre_render_map_children($element) {
+  foreach ($element['#map_children'] as $key => $value) {
     if (is_array($value)) {
       $element[$key] = drupal_render_children($element, $value);
     }