[freeipa PR#3750][opened] [Backport][ipa-4-7] Fixed errors newly exposed by pylint 2.4.0

[flo-renaud]

   URL: https://github.com/freeipa/freeipa/pull/3750
Author: flo-renaud
 Title: #3750: [Backport][ipa-4-7] Fixed errors newly exposed by pylint 2.4.0
Action: opened

PR body:
"""
This is a manual backport of PR #3727 to ipa-4-7 branch.
"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/3750/head:pr3750
git checkout pr3750

[freeipa PR#3750][closed] [Backport][ipa-4-7] Fixed errors newly exposed by pylint 2.4.0

[flo-renaud]

   URL: https://github.com/freeipa/freeipa/pull/3750
Author: flo-renaud
 Title: #3750: [Backport][ipa-4-7] Fixed errors newly exposed by pylint 2.4.0
Action: closed

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/3750/head:pr3750
git checkout pr3750