Improve the Write logEntry sample on this page

This page is referenced by docs that explicitly talk about LogEntries. So we should demo this “advanced” logging technique, even though we do recommend the standard log wrapper approach in the quickstarts.

Cri

In your documentation located at:
https://cloud.google.com/appengine/docs/standard/java/tools/gradle

it states:

While your application is running, run explodeApp or reloadApp to reflect your changes into the running application.

You don't need to use the reloadApp task because when the scanning featured is enabled wi