Index: wp-includes/functions.php
===================================================================
--- wp-includes/functions.php	(revision 18558)
+++ wp-includes/functions.php	(working copy)
@@ -2808,7 +2808,7 @@
 
 	if ( isset( $r['back_link'] ) && $r['back_link'] ) {
 		$back_text = $have_gettext? __('« Back') : '« Back';
-		$message .= "\n<p><a href='javascript:history.back()'>$back_text</p>";
+		$message .= "\n<p><a href='javascript:history.back()'>$back_text</a></p>";
 	}
 
 	if ( !function_exists( 'did_action' ) || !did_action( 'admin_head' ) ) :