Updated openstack/openstack
Project: openstack/python-keystoneclient  cacb4830d95d7c20363b93d3671e092942fe0c8b
null
Improved error message on connection failure

Added message from thrown error to message generated when httpclient connection fails

Closes-Bug: 1248257

Change-Id: Id47092f5775b97e8423e18c294f4e04872aa0b08