[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