Added initial sorting in order to make test case repeatable.

insert into mysql.user (host, user) values ('localhost', 'test11');

insert into mysql.db (host, db, user, select_priv) values 

('localhost', 'a%', 'test11', 'Y'), ('localhost', 'ab%', 'test11', 'Y');

alter table mysql.db order by db asc;

flush privileges;

show grants for test11@localhost;

Grants for test11@localhost