Index: src/wp-admin/includes/plugin.php
===================================================================
--- src/wp-admin/includes/plugin.php	(revision 41955)
+++ src/wp-admin/includes/plugin.php	(working copy)
@@ -113,9 +113,30 @@
 /**
  * Sanitizes plugin data, optionally adds markup, optionally translates.
  *
- * @since 2.7.0
+ * @since  2.7.0
  * @access private
- * @see get_plugin_data()
+ *
+ * @param string $plugin_file Path to the main plugin file.
+ * @param array  $plugin_data An array of plugin data. See `get_plugin_data()`.
+ * @param bool   $markup      Optional. If the returned data should have HTML markup applied.
+ *                            Default true.
+ * @param bool   $translate   Optional. If the returned data should be translated. Default true.
+ *
+ * @see    get_plugin_data()
+ *
+ * @return array {
+ *     Plugin data. Values will be empty if not supplied by the plugin.
+ *
+ *     @type string $Name        Name of the plugin. Should be unique.
+ *     @type string $Title       Title of the plugin and link to the plugin's site (if set).
+ *     @type string $Description Plugin description.
+ *     @type string $Author      Author's name.
+ *     @type string $AuthorURI   Author's website address (if set).
+ *     @type string $Version     Plugin version.
+ *     @type string $TextDomain  Plugin textdomain.
+ *     @type string $DomainPath  Plugins relative directory path to .mo files.
+ *     @type bool   $Network     Whether the plugin can only be activated network-wide.
+ * }
  */
 function _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup = true, $translate = true ) {
 
@@ -364,8 +385,13 @@
 /**
  * Callback to sort array by a 'Name' key.
  *
- * @since 3.1.0
+ * @since  3.1.0
  * @access private
+ *
+ * @param array $a array with 'Name' key.
+ * @param array $b array with 'Name' key.
+ *
+ * @return int Return 0 or 1 based on two string comparison.
  */
 function _sort_uname_callback( $a, $b ) {
 	return strnatcasecmp( $a['Name'], $b['Name'] );
@@ -1461,6 +1487,7 @@
  *
  * @param string $menu_slug    The slug for the parent menu.
  * @param string $submenu_slug The slug of the submenu.
+ *
  * @return array|bool The removed submenu on success, false if not found.
  */
 function remove_submenu_page( $menu_slug, $submenu_slug ) {