after-merge fix: adjusted test results.

mysql-test/r/ps.result

@@ -1566,7 +1566,7 @@ execute stmt using @a;
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
-  `?` decimal(2,1) default NULL
+  `?` decimal(2,1) DEFAULT NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 drop table t1;
 End of 5.0 tests.