[SSSD] [sssd PR#933][comment] Unify the indentation to 4 spaces

[miztake]

URL: https://github.com/SSSD/sssd/pull/933
Title: #933: Unify the indentation to 4 spaces

miztake commented:
"""
This PR alone cannot cover the 4 spaces indentation.
I'm sorry, but I'll close this PR once and organize it again.

If you don't like many sources being modified by such PR, don't hesitate to let me know.
"""

See the full comment at https://github.com/SSSD/sssd/pull/933#issuecomment-553448849