Currently, swift-init returns zero if can't locate config on start.
Because of this problem, it is not possible to distinguish if managed
to start server.
Due to legacy two new complementary options are added. Default is context
dependent.
--strict returns non-zero if some config is missing (default mode
if explicitly named server)
--non-strict returns zero even if some config is missing (default mode
if alias is used)
As a side effect:
If some of demanded servers already running it does not try to start
unstarted and also returns non-zero (in strict mode). That is still sufficient
for the goal of patch.
For future improvements LSB status codes should be considered.
DocImpact
Change-Id: I7750abd4a94875b46f83f4aeee8509388d543c2b
7b7c6c5249