[SSSD] [sssd PR#927][comment] Add processing to save errno before outputting DEBUG

[alexey-tikhonov]

URL: https://github.com/SSSD/sssd/pull/927
Title: #927: Add processing to save errno before outputting DEBUG

alexey-tikhonov commented:
"""
ok to test
"""

See the full comment at https://github.com/SSSD/sssd/pull/927#issuecomment-549438949