Updated openstack/openstack
Project: openstack/horizon  4f018a57deb39322368f797fd182adb6ed7d83cb

Fixes nothing is displayed if volume metadata is empty problem

If volume metadata is empty, nothing is displayed below "Metadata"
<h4> heading in the volume detail page. So, this patch fixes this
problem by displaying "None".

Change-Id: I0302e47cc8c9e471972ef7c249d54582242b5390
Closes-bug: #1382876