main.upgrade_MDEV-19650 fails with result difference

CURRENT_TEST: main.upgrade_MDEV-19650

--- /mariadb/10.4/mysql-test/main/upgrade_MDEV-19650.result	2020-07-31 14:24:17.304978248 +0300

+++ /mariadb/10.4/mysql-test/main/upgrade_MDEV-19650.reject	2020-07-31 17:25:27.973255284 +0300

@@ -165,6 +165,7 @@

 SELECT * FROM information_schema.TABLE_PRIVILEGES WHERE GRANTEE="'mariadb.sys'@'localhost'";

 GRANTEE	TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	PRIVILEGE_TYPE	IS_GRANTABLE

 'mariadb.sys'@'localhost'	def	mysql	global_priv	SELECT	NO

+'mariadb.sys'@'localhost'	def	mysql	global_priv	UPDATE	NO

 'mariadb.sys'@'localhost'	def	mysql	global_priv	DELETE	NO

 # check non root

 CREATE USER 'not_root'@'localhost';

mysqltest: Result length mismatch