title: how to set -A flag in screenrc
body: <p>The screen man says </p>
  
  <blockquote>
    <p>‘-A’<br>
    Adapt the sizes of all windows to the size of the display. By
    default, screen may try to restore its old window sizes when attaching
    to resizable terminals (those with ‘WS’ in their descriptions, e.g.
    suncmd or some varieties of xterm).</p>
  </blockquote>
  
  <p>This works when you start off a screen with the -A flag. But, how do I set it in screenrc so that all my screen sessions get it by default? </p>