Corrected a test from func_date_add.test

mysql-test/r/func_date_add.result

@@ -147,4 +147,5 @@ v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VI
 select 30 + (20010101 + interval 2 day), x from v1;
 30 + (20010101 + interval 2 day)	x
 20010133	20010133
+drop view v1;
 End of 10.2 tests

mysql-test/t/func_date_add.test

@@ -128,4 +128,6 @@ create or replace view v1 as select 30 + (20010101 + interval 2 day) as x;
 show create view v1;
 select 30 + (20010101 + interval 2 day), x from v1;
 
+drop view v1;
+
 --echo End of 10.2 tests