Fix a test case that was broken after Bug#16979 fix. See r1645 and r1735.

The variable used in the tests below was introduced in r1735.

mysql-test/innodb.result

@@ -479,6 +479,7 @@ passwd varchar(32) binary DEFAULT '' NOT NULL,
 PRIMARY KEY (id),
 UNIQUE ggid (ggid)
 ) ENGINE=innodb;
+set global innodb_autoinc_lock_mode = 0;
 insert into t1 (ggid,passwd) values ('test1','xxx');
 insert into t1 (ggid,passwd) values ('test2','yyy');
 insert into t1 (ggid,passwd) values ('test2','this will fail');

mysql-test/innodb.test

@@ -345,6 +345,9 @@ CREATE TABLE t1 (
   UNIQUE ggid (ggid)
 ) ENGINE=innodb;
 
+# Set to old style locking
+set global innodb_autoinc_lock_mode = 0;
+
 insert into t1 (ggid,passwd) values ('test1','xxx');
 insert into t1 (ggid,passwd) values ('test2','yyy');
 -- error ER_DUP_ENTRY