User roles not assigned correctly to users

After creating user roles, the install profile script for creating users and assigning their user roles holds a bug. For each user the script reads:

install_add_user('test user', 'd8978cf127206b727c14e3ce91b90a0b', 'testuser@testsite.com', array (
0 => 'test user role',
), 1);

The "0" in the second line should actually be the rid of 'test user role'. This should be replaced by:

$role_id['test user role'] => 'test user role',