diff --git a/core/includes/install.core.inc b/core/includes/install.core.inc
index 53d859f..d8d01d6 100644
--- a/core/includes/install.core.inc
+++ b/core/includes/install.core.inc
@@ -1257,6 +1257,13 @@ function install_select_profile_form($form, &$form_state, $install_state) {
 
 /**
  * Finds all .po files that are useful to the installer.
+ *
+ * @return
+ *   An associative array of file information objects keyed by file URIs as
+ *   returned by file_scan_directory(). English is removed from the array and
+ *   the object is prepared for database insertion.
+ *
+ * @see file_scan_directory()
  */
 function install_find_translations() {
   $files = install_find_translation_files();
@@ -1381,11 +1388,14 @@ function install_select_language(&$install_state) {
  * Form constructor for the language selection form.
  *
  * @param $files
- *   An array of .po files.
+ *   An associative array of file information objects keyed by file URIs as
+ *   returned by file_scan_directory().
  *
- * @see install_find_translations()
+ * @see file_scan_directory()
  * @ingroup forms
  */
+function install_find_translation_files($langcode = NULL) {
+ */
 function install_select_language_form($form, &$form_state, $files) {
   include_once DRUPAL_ROOT . '/core/includes/standard.inc';
   include_once DRUPAL_ROOT . '/core/modules/language/language.module';
@@ -1854,6 +1864,9 @@ function install_check_requirements($install_state) {
 /**
  * Form constructor for a site configuration form.
  *
+ * @param $install_state
+ *   An array of information about the current installation state.
+ *
  * @see install_configure_form()
  * @see install_configure_form_validate()
  * @see install_configure_form_submit()
diff --git a/core/includes/menu.inc b/core/includes/menu.inc
index 0dec4c9..70113b0 100644
--- a/core/includes/menu.inc
+++ b/core/includes/menu.inc
@@ -2231,8 +2231,8 @@ function menu_local_tabs() {
  *
  * @param $variables
  *   An associative array containing:
- *     - primary: An array of local tasks (tabs).
- *     - secondary: An array of local tasks (tabs).
+ *     - primary: (optional) An array of local tasks (tabs).
+ *     - secondary: (optional) An array of local tasks (tabs).
  *
  * @ingroup themeable
  * @see menu_local_tasks()