Fix usage of "|" for tests
Fix usage of "|" for tests

With the more recent versions of ansible, we should now use
"is" instead of the "|" sign for the tests.

This should fix it.

Change-Id: Iaab769237a607bf003fb70eb99ade309c112d6ac

openstack/openstack-ansible-memcached_server,openstack/openstack-ansible-memcached_server