[SSSD] [sssd PR#560][comment] NSS: close files after mmap

[alexey-tikhonov]

URL: https://github.com/SSSD/sssd/pull/560
Title: #560: NSS: close files after mmap

alexey-tikhonov commented:
"""
@ChrisKowalczyk, do you plan to work on this PR?
Or may I take over?
"""

See the full comment at https://github.com/SSSD/sssd/pull/560#issuecomment-532171379