Make `pycodestyle` results identical
    
    Currently, pycodestyle is running on:
    - make fastlint:
      `$(PYTHON) -m pycodestyle --diff`
    
      According to docs:
      ```
      The project options are read from the [pycodestyle] section of the
      tox.ini file or the setup.cfg file located in any parent folder of the
      path(s) being processed.
      ```
    
      So, pycodestyle respects tox.ini:
      ```
      [pycodestyle]
      # E402 module level import not at top of file
      # W504 line break after binary operator
      ignore = E402, W504
      ```
    
    - PR Travis `lint`:
      `pycodestyle --ignore=W504 --diff &> $PEP8_ERROR_LOG ||:`
    
      According to docs:
      ```
      Please note that if the option –ignore=errors is used, the
      default configuration will be overridden and ignore only the
      check(s) you skip.
      ```
    
      So, pycodestyle doesn't respect tox.ini.
    
    For now, fastlint ignores E402, W504, while Travis lint ignores only W504.
    This issue is exposed by Azure Pipelines, which employs fastlint.
    
    Fixes: https://pagure.io/freeipa/issue/7962
    Signed-off-by: Stanislav Levin <slev@altlinux.org>
    Reviewed-By: Christian Heimes <cheimes@redhat.com>