Index: src/wp-admin/widgets.php
===================================================================
--- src/wp-admin/widgets.php	(revision 33867)
+++ src/wp-admin/widgets.php	(working copy)
@@ -13,7 +13,10 @@
 require_once(ABSPATH . 'wp-admin/includes/widgets.php');
 
 if ( ! current_user_can('edit_theme_options') )
-	wp_die( __( 'Cheatin’ uh?' ), 403 );
+	wp_die(
+		'<h1>' . __( 'Cheatin&#8217; uh?' ) . '</h1>' .
+		'<p>' . __( 'You are not allowed to manage these items.' ) . '</p>',
+		403 );
 
 $widgets_access = get_user_setting( 'widgets_access' );
 if ( isset($_GET['widgets-access']) ) {