Ticket #39606: 39606.1

Index: src/wp-admin/includes/class-automatic-upgrader-skin.php
===================================================================
--- src/wp-admin/includes/class-automatic-upgrader-skin.php     (revision 39913)
+++ src/wp-admin/includes/class-automatic-upgrader-skin.php     (working copy)
@@ -59,6 +59,7 @@
        }
 
        /**
+        * @access public 
         * @param string|array|WP_Error $data
         */
        public function feedback( $data ) {