Code review comment for lp:~vlad-lesin/percona-server/5.6-sql_timeout_twitter

> Vlad,
> Some minor comments:
>
> lines 2279-2280 redundant change
> likewise 2585
> likewise 3023
>
> in have_statement_timeout_basic.test
> it has been said that error 'Readonly variable' is expected but what really
> is expected is the 'Unknown column 'have_statement_timeout' in 'field list''
> error and it is raised as well.

Fixed.