Make ns_port_server exit abnormally unless we get a 0 status.
Make ns_port_server exit abnormally unless we get a 0 status.

Change-Id: Ie2bab20b280d839ed4b054946e86ee6e362f1a5d
Reviewed-on: http://review.northscale.com/1284
Reviewed-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>
Tested-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>

mschoch/ns_server,pavel-blagodov/ns_server,pavel-blagodov/ns_server,pavel-blagodov/ns_server,mschoch/ns_server,nimishzynga/ns_server,membase/ns_server,nimishzynga/ns_server,pavel-blagodov/ns_server,ceejatec/ns_server,mschoch/ns_server,membase/ns_server,mschoch/ns_server,membase/ns_server,vzasade/ns_server,ingenthr/ns_server,t3rm1n4l/ns_server,vzasade/ns_server,daverigby/ns_server,ingenthr/ns_server,daverigby/ns_server,nimishzynga/ns_server,t3rm1n4l/ns_server,t3rm1n4l/ns_server,mschoch/ns_server,ingenthr/ns_server,nimishzynga/ns_server,ingenthr/ns_server,t3rm1n4l/ns_server,nimishzynga/ns_server,nimishzynga/ns_server,t3rm1n4l/ns_server,mschoch/ns_server,ceejatec/ns_server,ceejatec/ns_server,ceejatec/ns_server,vzasade/ns_server,daverigby/ns_server,ceejatec/ns_server,membase/ns_server,vzasade/ns_server,membase/ns_server,daverigby/ns_server,daverigby/ns_server,membase/ns_server,ceejatec/ns_server