Index: wp-includes/admin-bar.php
===================================================================
--- wp-includes/admin-bar.php	(revision 16457)
+++ wp-includes/admin-bar.php	(working copy)
@@ -275,7 +275,9 @@
 
 	$update_title = !empty($update_title) ? esc_attr(implode(', ', $update_title)) : '';
 
-	$update_title = sprintf( __('Updates %s'), "<span id='ab-updates' class='count-$update_count' title='$update_title'><span class='update-count'>" . number_format_i18n($update_count) . "</span></span>" );
+	$update_title = "<span title='$update_title'>";
+	$update_title .= sprintf( __('Updates %s'), "<span id='ab-updates' class='count-$update_count' class='update-count'>" . number_format_i18n($update_count) . '</span>' );
+	$update_title .= '</span>';
 
 	$wp_admin_bar->add_menu( array( 'id' => 'updates', 'title' => $update_title, 'href' => admin_url('update-core.php') ) );
 }