[freeipa PR#5912][opened] [Backport][ipa-4-9] tasks.py: fix flake8-reported issues

[fcami]

   URL: https://github.com/freeipa/freeipa/pull/5912
Author: fcami
 Title: #5912: [Backport][ipa-4-9] tasks.py: fix flake8-reported issues
Action: opened

PR body:
"""
This PR was opened automatically because PR #5911 was pushed to master and backport to
ipa-4-9 is required.
"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/5912/head:pr5912
git checkout pr5912

[freeipa PR#5912][closed] [Backport][ipa-4-9] tasks.py: fix flake8-reported issues

[rcritten]

   URL: https://github.com/freeipa/freeipa/pull/5912
Author: fcami
 Title: #5912: [Backport][ipa-4-9] tasks.py: fix flake8-reported issues
Action: closed

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/5912/head:pr5912
git checkout pr5912