Enhance the parameter check for "path" in cluster collect
Enhance the parameter check for "path" in cluster collect

Set the parameter "path" as required in senlinclient.

Change-Id: I0ff95ac201ad3b1e6bbfc22cebf258d68cb4f31e
Closes-Bug: #1643401

openstack/python-senlinclient,openstack/python-senlinclient,stackforge/python-senlinclient,stackforge/python-senlinclient