f2a1766 test_caless: open CA cert in binary mode

1 file Authored by mreznik 6 years ago, Committed by stlaz 6 years ago,
    test_caless: open CA cert in binary mode
    
    When running test_caless suite in py3 we need to open CA cert in
    binary mode so we can provide bytes later for python-cryptography.
    
    https://pagure.io/freeipa/issue/7131
    
    Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>