Updated openstack/openstack
Project: openstack-dev/devstack  f3939bf07752f19096c10f30684b0efb11b2676e

Use correct path when extracting tar.gz image

Fix issue with file:/ image urls.

Change-Id: I8c5f5b27b5d6ebe5be84dc58d37752adbd12f89b
Closes-Bug: 1277609