[SSSD] [sssd PR#978][comment] Fix another build failure with python 3.8

[pbrezina]

URL: https://github.com/SSSD/sssd/pull/978
Title: #978: Fix another build failure with python 3.8

pbrezina commented:
"""
* `master`
    * 4dbfaae4379eda8b3b7debd37b338e8d384e2a77 - Fix another build failure with python 3.8

"""

See the full comment at https://github.com/SSSD/sssd/pull/978#issuecomment-582832143