Comment 16 for bug 1008344

I'm not sure why this doesn't work, as other parts of the code do the same. However, this is not what you want anyway: This check would already authenticate, i. e. you would get a password prompt right at the startup of l-s just for checking if you are an administrator. Instead, this should query polkit in "no interactivity" mode (no POLKIT_CHECK_AUTHORIZATION_FLAGS_ALLOW_USER_INTERACTION), and check if it gets a "no but you can authorize" result (sorry, can't research the details here).

But with polkit we can probably just drop the whole is_admin check completely. If a non-admin user is starting l-s, the polkit dialog will still allow you to authenticate as another user who is an admin.