Use sudo -H to install ansible to avoid permission failures.

Bob Ball · Bob Ball · commit 143370d83891 · 2016-02-26T09:16:12.000Z
Change-Id: Icf3d139dfba0b6f77e5a6b6ebf796f75585268f6

Conflicts:
	devstack-vm-gate-wrap.sh
diff --git a/devstack-vm-gate-wrap.sh b/devstack-vm-gate-wrap.sh
@@ -434,7 +434,7 @@ set -x
 # Install ansible
 sudo -H pip install virtualenv
 virtualenv /tmp/ansible
-/tmp/ansible/bin/pip install ansible==$ANSIBLE_VERSION
+sudo -H /tmp/ansible/bin/pip install ansible==$ANSIBLE_VERSION
 export ANSIBLE=/tmp/ansible/bin/ansible
 
 # Write inventory file with groupings
