Ticket 457 - dirsrv init script returns 0 even when few or all instances fail to start
Bug Description: We don't return an error code when one or more instances fails to start.
Fix Description: Return error 1 when an instance fails to start.
https://fedorahosted.org/389/ticket/457
Reviewed by: richm(Thanks!)
(cherry picked from commit ef48c93ded0f766d8dab679b976ca032d6297c32)