BUG 27513: fixed left-over sql mode from a test case.

mysql-test/r/errors.result

@@ -28,21 +28,16 @@ ERROR 42000: Display width out of range for column 'a' (max = 255)
 set sql_mode='traditional';
 create table t1 (a varchar(66000));
 ERROR 42000: Column length too big for column 'a' (max = 65535); use BLOB or TEXT instead
+set sql_mode=default;
 CREATE TABLE t1 (a INT);
 SELECT a FROM t1 WHERE a IN(1, (SELECT IF(1=0,1,2/0)));
 a
-Warnings:
-Error	1365	Division by 0
 INSERT INTO t1 VALUES(1);
 SELECT a FROM t1 WHERE a IN(1, (SELECT IF(1=0,1,2/0)));
 a
 1
-Warnings:
-Error	1365	Division by 0
 INSERT INTO t1 VALUES(2),(3);
 SELECT a FROM t1 WHERE a IN(1, (SELECT IF(1=0,1,2/0)));
 a
 1
-Warnings:
-Error	1365	Division by 0
 DROP TABLE t1;

mysql-test/t/errors.test

@@ -40,6 +40,7 @@ create table t1 (a int(256));
 set sql_mode='traditional';
 --error 1074
 create table t1 (a varchar(66000));
+set sql_mode=default;
 
 #
 # Bug #27513: mysql 5.0.x + NULL pointer DoS