title: Supress Ansible warning (at least for aptitude install)
body: <p>How can I install aptitude package without ansible warning:</p>
  
  <pre><code>TASK [... : APT: Install aptitude package] ********************************************************************************
   [WARNING]: Could not find aptitude. Using apt-get instead
  </code></pre>
  
  <p>my install code looks like:</p>
  
  <pre><code>- name: "APT: Install aptitude package"
    apt:
      name: aptitude
  #  vars:
  #    ACTION_WARNINGS: false &lt;&lt; DOES NOT WORK
  </code></pre>