[WARNING]: when statements should not include jinja2 templating
delimiters such as {{ }} or {% %}. Found:
{{ (bootstrap_mongodb_cluster.stdout|from_json).ok != 1 }}
Reason: Ansible 2.3.0 does not like delimiters in when statement.
Fix small typo
Change-Id: I69ea5f640b8e841e532eca97b7ed3959e9335967
Closes-Bug: #1714337