Index: includes/common.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/common.inc,v
retrieving revision 1.1217
diff -u -p -r1.1217 common.inc
--- includes/common.inc	11 Sep 2010 06:03:11 -0000	1.1217
+++ includes/common.inc	12 Sep 2010 21:26:06 -0000
@@ -5692,7 +5692,7 @@ function drupal_array_set_nested_value(a
  * altered by reference:
  * @code
  * $key_exists = NULL;
- * $value = drupal_array_get_nested_value($form, $parents, $value_exists);
+ * $value = drupal_array_get_nested_value($form, $parents, $key_exists);
  * if ($key_exists) {
  *   // ... do something with $value ...
  * }