Render known_hosts entry
Render known_hosts entry

- bring out the variable to an outer scope

Signed-off-by: Slawek Ligus <7f6453cf264d8e0f493c7129c1ba7253720c5b2a@pivotal.io>

concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse