[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:
"""
Added the following indentation fixes.

- sss_client/sudo/sss_sudo_response.c:199
 - providers/ldap/ldap_auth.c:1405
 - responder/common/negcache.c:1116
 - responder/common/negcache.c:1126
 - responder/common/negcache.c:1241
 - sss_client/pam_sss.c:2342
"""

See the full comment at https://github.com/SSSD/sssd/pull/933#issuecomment-552989985