Didn't test this as well as I thought, I guess. Previously it would
return more than one result in the wrong order. Fixed now, so the latest
version is always picked up correctly.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
I think this will help with the `update.nix` script logic, to ensure
that builds work properly afterwords.
Signed-off-by: Austin Seipp <aseipp@pobox.com>