title: Error with Ansible URI module and variables
body: <p>I have the following code - </p>
  
  <pre><code>- name: Create a repo
    uri:
      url: http://mystash.com/stash/rest/api/1.0/projects/PROJECT/repos/
      method: POST
      body: '{"name":"{{ somevar }}_settings"}'
      force_basic_auth: yes 
      status_code: 201 
      headers:
        Content-Type: "application/json"
        Authorization: "Basic bm90bXlwYXNzd29yZA==="
        Accept: "application/json"
  </code></pre>
  
  <p>The issue that I am having is when I try to run this, I get this error -</p>
  
  <pre><code> An unknown error occurred: sendall() argument 1 must be string or buffer, not dict"
  </code></pre>
  
  <p>Is there a way to set the variable that I am passing to it as a string inside of the ansible plan?  Using an = instead of : when passing the value in isn't fixing the issue.</p>