Portability fix (for 64 bit intel)

mysql-test/t/index_merge_ror.test

@@ -184,6 +184,8 @@ explain select st_a from t1 ignore index (st_a) where st_a=1 and st_b=1;
 # Check that keys that don't improve selectivity are skipped.
 # 
 
+# Different value on 32 and 64 bit
+--replace sta_swt12a sta_swt21a
 explain select * from t1 where st_a=1 and swt1a=1 and swt2a=1;
 
 explain select * from t1 where st_b=1 and swt1b=1 and swt2b=1;