Bug#18012 mysqlslap fails if querystring starts with delimiter

- Terminate loop not only when the limit is met, but alse when there is no more stmts  

client/mysqlslap.c

@@ -1174,7 +1174,7 @@ limit_not_met:
         goto end;
     }
 
-  if (con->limit && queries < con->limit)
+    if (!con->stmt && con->limit && queries < con->limit)
       goto limit_not_met;
 
 end:

mysql-test/r/mysqlslap.result

@@ -129,7 +129,6 @@ INSERT INTO t1 VALUES (1, 'This is a test');
 insert into t2 values ('test', 'test2');
 select * from t1;
 select * from t2;
-select * from t1;
 DROP SCHEMA IF EXISTS `mysqlslap`;
 DROP SCHEMA IF EXISTS `mysqlslap`;
 CREATE SCHEMA `mysqlslap`;
@@ -141,5 +140,4 @@ INSERT INTO t1 VALUES (1, 'This is a test');
 insert into t2 values ('test', 'test2');
 select * from t1;
 select * from t2;
-select * from t1;
 DROP SCHEMA IF EXISTS `mysqlslap`;