Ticket #48939 - nsslapd-workingdir is empty when ns-slapd is started by systemd
Description: Thanks to tbordaz@redhat.com for suggesting to reset the
working dir in the error cases. I've added more error checks and
resetting the nsslapd-workingdir values.
https://fedorahosted.org/389/ticket/48939
Reviewed by mreynolds@redhat.com (Thank you, Mark!!)