Allow multiple users to see procedures and functions

I have GRANT ALL PRIVILEGES ON `test1`.* TO 'admin'@'%', GRANT ALL PRIVILEGES ON `test1`.* TO 'devel'@'%' (from SHOW GRANTS FOR some_user) and I have created simple procedure as admin in test1.

And here is what I see:

as admin

mysql> select current_user();
+----------------+
| current_user() |
+----------------+
| admin@%        |
+----------------+
1 row in set (0,03 sec)

mysql> SELECT ROUTINE_DEFINITION FROM information_schema.ROUTINES WHERE SPECIFIC_NAME='test' AND ROUTINE_SCHEMA='test1';
+--------------------+
| ROUTINE_DEFINITION |
+--------------------+
| begin
end          |
+--------------------+
1 row in set (0,04 sec)

mysql> call test();
Query OK, 0 rows affected (0,03 sec)

as devel:

mysql> select current_user();                                                   +----------------+
| current_user() |
+----------------+
| devel@%        |
+----------------+
1 row in set (0,03 sec)

mysql> SELECT ROUTINE_DEFINITION FROM information_schema.ROUTINES WHERE SPECIFIC_NAME='test' AND ROUTINE_SCHEMA='test1';
+--------------------+
| ROUTINE_DEFINITION |
+--------------------+
| NULL               |
+--------------------+
1 row in set (0,03 sec)

mysql> call test();
Query OK, 0 rows affected (0,03 sec)

How can I allow multiple users to see code of procedure or function?