Ticket #12587: 12587.diff

wp-includes/capabilities.php

@@ -770 +770 @@
                 global $wpdb;
                 if ( !empty($blog_id) ) {
                         $cap_key = $wpdb->get_blog_prefix( $blog_id );
-                        $cap_key. 'capabilities';
+                        $cap_key.= 'capabilities';
                 } else {
                         $cap_key = '';
                 }