title: Stackdriver stdout log message severity
body: <p>I am using a none supported language on GCP.</p>
  
  <p>Stackdriver logging is great it collects my stdout logs which is most excellent. </p>
  
  <p>However I can't seem to set a severity. </p>
  
  <p>All the documentation pages seem to revolve around sending whole logs. </p>
  
  <p>I would like to know what a message needs to look like when sending it to stdout so it picks up on the severity. An Example would be amazing.</p>