title: ansible \ include other yml with param doesn't work
body: <p>why this not working:</p>
  
  <pre><code>---
    - hosts: all
      vars:
        input_version: 99
  
    - include: ./tagger_1.yml input="{{ input_version }}"
  </code></pre>
  
  <p>child is:</p>
  
  <pre><code>    ---
    - name: build tagger docker
      hosts: all  
      vars:       
          version: "11.0"
      tasks:
      - name: some step !!!!!!
        command: echo {{ version }}
  </code></pre>
  
  <p>echo prints the child but I wanted to override it with input param from parent. doable?</p>
  
  <pre><code>changed: [localhost] =&gt; {"changed": true, "cmd": ["echo", "11.0"], "delta": "0:00:00.010476", "end": "2016-06-23 13:21:44.091857", "invocation": {"module_args": {"_raw_params": "echo 11.0", "_uses_shell": false, "chdir": null, "creates": null, "executable": null, "removes": null, "warn": true}, "module_name": "command"}, "rc": 0, "start": "2016-06-23 13:21:44.081381", "stderr": "", "stdout": "11.0", "stdout_lines": ["11.0"], "warnings": []}
  </code></pre>