Fixed warnings raised from mysqltest (unknown -- commands)

mysql-test/t/greedy_optimizer.test

@@ -145,11 +145,11 @@ select @@optimizer_prune_level;
 #
 # These are the values for the parameters that control the greedy optimizer
 # (total 6 combinations - 3 for optimizer_search_depth, 2 for optimizer_prune_level):
---
+# 3:
 # set optimizer_search_depth=0;  - automatic
 # set optimizer_search_depth=1;  - min
 # set optimizer_search_depth=62; - max (default)
---
+# 2:
 # set optimizer_prune_level=0 - exhaustive;
 # set optimizer_prune_level=1 - heuristic; # default
 

mysql-test/t/join.test

@@ -512,10 +512,12 @@ select * from v1a join (t3 natural join t4) on a = y;
 #--------------------------------------------------------------------
 # Negative tests (tests for errors)
 #--------------------------------------------------------------------
+# works in Oracle - bug
 -- error 1052
-select * from t1 natural join (t3 cross join t4); -- works in Oracle - bug
+select * from t1 natural join (t3 cross join t4);
+# works in Oracle - bug
 -- error 1052
-select * from (t3 cross join t4) natural join t1; -- works in Oracle - bug
+select * from (t3 cross join t4) natural join t1;
 -- error 1052
 select * from t1 join (t2, t3) using (b);
 -- error 1052

mysql-test/t/ndb_index_ordered.test

@@ -50,7 +50,7 @@ update t1 set c = 13 where b <= 3;
 select * from t1 order by a;
 update t1 set b = b + 1 where b > 4 and b < 7;
 select * from t1 order by a;
--- Update primary key
+# Update primary key
 update t1 set a = a + 10 where b > 1 and b < 7;
 select * from t1 order by a;