Index: src/wp-admin/includes/class-automatic-upgrader-skin.php
===================================================================
--- src/wp-admin/includes/class-automatic-upgrader-skin.php	(revision 39914)
+++ 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 ) {