[SSSD] [sssd PR#901][comment] Update sss_ssh.c

[centos-ci]

  URL: https://github.com/SSSD/sssd/pull/901
Title: #901: Update sss_ssh.c

centos-ci commented:
"""
Can one of the admins verify this patch?
"""

See the full comment at https://github.com/SSSD/sssd/pull/901#issuecomment-541858825