Index: wp-admin/includes/template.php
===================================================================
--- wp-admin/includes/template.php	(revision 41254)
+++ wp-admin/includes/template.php	(working copy)
@@ -2054,7 +2054,17 @@
  */
 function convert_to_screen( $hook_name ) {
 	if ( ! class_exists( 'WP_Screen' ) ) {
-		_doing_it_wrong( 'convert_to_screen(), add_meta_box()', __( "Likely direct inclusion of wp-admin/includes/template.php in order to use add_meta_box(). This is very wrong. Hook the add_meta_box() call into the add_meta_boxes action instead." ), '3.3.0' );
+		_doing_it_wrong(
+			'convert_to_screen(), add_meta_box()',
+			sprintf(
+				/* translators: 1: wp-admin/includes/template.php 2: add_meta_box() 3: add_meta_boxes */
+				__( 'Likely direct inclusion of %1$s in order to use %2$s. This is very wrong. Hook the %2$s call into the %3$s action instead.' ),
+				'<code>wp-admin/includes/template.php</code>',
+				'<code>add_meta_box()</code>',
+				'<code>add_meta_boxes</code>',
+			),
+			'3.3.0'
+		);
 		return (object) array( 'id' => '_invalid', 'base' => '_are_belong_to_us' );
 	}