I see bug #690081 made this run only in interactive
mode, but it still fails for me when I do a make test.
Apparently my utmp is in an unexpected place,
/var/run/, which I guess doesn't agree with my libc?

I don't know how common this bug will be for other
people, but if anyone else experiences it you should
probably just get rid of the getlogin test altogether,
or at least catch the OSError: (2, 'No such file or directory')
and don't have that mean test failure.