Updated openstack/openstack
Project: openstack/neutron  974178601d60f607593d49d416224b28553fe5ec

Check for IPv6 file before reading

Check to see if the IPv6 disabled flag file exists
before trying to read it. This file doesn't exist
on systems with the IPv6 module blacklisted.

Closes-Bug: #1361542
Change-Id: I4064b4189cc9d8f0f0e0e7025cf6f83d5b6ec276