Fix make ci

[gluemaker]

Describe the bug
Build broke:

    def test_subject_alt_names_none(self, httpbin_builtin_cert):
        """Pass."""
        store = cert_human.CertStore.from_path(httpbin_builtin_cert)
>       assert store.subject_alt_names == []  # nosec
E       AssertionError: assert ['localhost', '127.0.0.1'] == []
E         Left contains 2 more items, first extra item: 'localhost'
E         Use -v to get the full diff

To Reproduce
https://travis-ci.org/lifehackjim/cert_human/builds/539246155?utm_medium=notification&utm_source=email