[SSSD] [sssd PR#920][comment] Add comment to workaround for libsemanage issue

[pbrezina]

URL: https://github.com/SSSD/sssd/pull/920
Title: #920: Add comment to workaround for libsemanage issue

pbrezina commented:
"""
* `master`
    * fb3a8b3c1671f3b601563828dea2a45853daeb5b - selinux: Keep explicite umask() calls

"""

See the full comment at https://github.com/SSSD/sssd/pull/920#issuecomment-549298687