9f269c3 Older versions of kobo.rpmlib.get_header_field() return bytes, newer versions

Authored and Committed by merlinm 4 years ago
    Older versions of kobo.rpmlib.get_header_field() return bytes, newer versions
    return str. Decode as necessary.
    
    Signed-off-by: Merlin Mathesius <mmathesi@redhat.com>