Ticket 47613 - Impossible to configure nsslapd-allowed-sasl-mechanisms
Bug Description: The design doc sasy you can use comma separated list of supported mechanisms,
but in fact this was not supported.
Fix Description: Allow comma separated lists.
https://fedorahosted.org/389/ticket/47613
Reviewed by: richm(Thanks!)
(cherry picked from commit 6200f6812682760cd2a54d6a3bcbb009a0dffe79)