PYTHON: sss_obfuscate should work with python3
Based on patch from: Steven W. Elling <ellingsw+29044@gmail.com>
Resolves:
https://fedorahosted.org/sssd/ticket/2937
Reviewed-by: Martin Basti <mbasti@redhat.com>
(cherry picked from commit 11496692da75a330de01d5f15b7183d2439efd3c)