[SSSD] [sssd PR#921][comment] util/server.c: fix handling when error occurs in waitpid()

[jhrozek]

URL: https://github.com/SSSD/sssd/pull/921
Title: #921: util/server.c: fix handling when error occurs in waitpid()

jhrozek commented:
"""
ok to test
"""

See the full comment at https://github.com/SSSD/sssd/pull/921#issuecomment-547995771