More phpdoc updates for wp-adming. See #7496 props santosj.

git-svn-id: https://develop.svn.wordpress.org/trunk@8656 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/page.php

@@ -1,4 +1,14 @@
 <?php
+/**
+ * Edit page administration panel.
+ *
+ * Manage edit page: post, edit, delete, etc.
+ *
+ * @package WordPress
+ * @subpackage Administration
+ */
+
+/** WordPress Administration Bootstrap */
 require_once('admin.php');
 
 $parent_file = 'edit.php';
@@ -6,6 +16,11 @@ $submenu_file = 'edit-pages.php';
 
 wp_reset_vars(array('action'));
 
+/**
+ * Redirect to previous page.
+ *
+ * @param int $page_ID Page ID.
+ */
 function redirect_page($page_ID) {
 	$referredby = '';
 	if ( !empty($_POST['referredby']) ) {