pylint: Skip unspecified-encoding
    
    Pylint 2.10 introduced new checker:
    > It is better to specify an encoding when opening documents. Using the
      system default implicitly can create problems on other operating
      systems. See https://www.python.org/dev/peps/pep-0597/
    
    According to that PEP:
    > open(filename) isn't explicit about which encoding is expected:
      - If ASCII is assumed, this isn't a bug, but may result in decreased
        performance on Windows, particularly with non-Latin-1 locale
        encodings
      - If UTF-8 is assumed, this may be a bug or a platform-specific script
      - If the locale encoding is assumed, the behavior is as expected (but
        could change if future versions of Python modify the default)
    
    IPA requires UTF-8 environments.
    
    Fixes: https://pagure.io/freeipa/issue/9117
    Signed-off-by: Stanislav Levin <slev@altlinux.org>
    Reviewed-By: Rob Crittenden <rcritten@redhat.com>