kdump: Display clear message when kdump fails to start
kdump: Display clear message when kdump fails to start

Displays clear error message when kdump service failed to start.

Change-Id: Ib23538998b39ed89b30dbc9637750ee6cc1c1daa
Bug-Url: http://bugzilla.redhat.com/1203727
Signed-off-by: Martin Perina <7bf83f5b771f1cc16b652b5fe02fa33310bda7b0@redhat.com>
Signed-off-by: Alon Bar-Lev <2e3ceb4d37adc6ae3ccc00d3646e0e0a036ace03@redhat.com>

alonbl/ovirt-host-deploy,oVirt/ovirt-host-deploy,oVirt/ovirt-host-deploy,alonbl/ovirt-host-deploy,oVirt/ovirt-host-deploy