Fix regression in topology load error reporting
Fix regression in topology load error reporting

Allow the script to detect if a device or node has failed to load
from the topology file and alert the user on what to do. This is
fixing a regression introduced by PR #182.

Signed-off-by: Jose A. Rivera <2a0958b6fecb909a38a254361e8d9708c4487d67@redhat.com>

ramkrsna/gluster-kubernetes,gluster/gluster-kubernetes,gluster/gluster-kubernetes,ramkrsna/gluster-kubernetes