Ensure bash completions directory is present

This is not present by default on debian/ubuntu and was only created
as a side effect of installing other packages (such as git). Cleaning
up these package installs makes creation of the bash completions fail
as the destination directory is absent.

Change-Id: I945d117cc2b1545b31efc921188950b1dd9fe509

playbooks/utility-install.yml

@@ -34,6 +34,13 @@
   tags:
     - utility
   handlers:
+    - name: Ensure bash completions directory is present
+      file:
+        path: "/etc/bash_completion.d"
+        state: "directory"
+        mode: "0755"
+      listen:
+        - "venv changed"
     - name: Create openstack client bash_completion script
       shell: >-
         openstack complete > /etc/bash_completion.d/openstack_client