title: In nginx config, how to show something to log file directly in the config file?
body: <p>I'm config a nginx, and debugging the config file,</p>
  
  <p>How to show something from the config file directly to log file?</p>
  
  <p>for example:</p>
  
  <pre><code>location ..... {
  
     to_log "some string";
  
     }
  </code></pre>