Don't check if '-n' is a current boot entry so early.

We haven't made the list yet, so it'll always be wrong.

This should fix part of https://github.com/vathpela/efibootmgr/issues/18

Signed-off-by: Peter Jones <pjones@redhat.com>
Actually /set/ the values we're using to the results of parsing the number.

This should fix https://github.com/vathpela/efibootmgr/issues/18

Signed-off-by: Peter Jones <pjones@redhat.com>