do not print passwords to stdout

playbooks/hosts/fed-cloud09.cloud.fedoraproject.org.yml

@@ -246,6 +246,7 @@
       email="{{ item.email }}"
       tenant="{{ item.tenant }}"
       password="{{ item.password }}"
+      no_log=True
       state=present
     with_items:
       - { name: kevin, email: 'kevin@fedoraproject.org', tenant: infrastructure, password: "{{kevin_password}}" }