Updated openstack/openstack
Project: openstack/keystone  aa4afd82127fc8defe94b4e7635eca3083f07b3d

Redirect stdout and stderr when using subprocess

The standard output and standard error streams where not captured
and logged in any meaningful way. This change captures those
streams and logs them in debug mode and when an exception is raised.

Closes-Bug: #1183526
Co-Authored-By: David Stanek <dstanek@dstanek.com>
Change-Id: I37fc99e0f857d21ddd02b15234a42fec5810bc03