Update to docker-entrypoint.sh breaks startup

After the update to docker-entrypoint.sh, our application can no longer start, this has caused us to revert to 9.4.50 baseimage.
See https://github.com/eclipse/jetty.docker/commit/03c0b9d1d494f6f8b39f1e2046e680f2d3dd2604 for details.

We use the following java_options when starting:

-Dlogback.configurationFile=/var/lib/jetty/conf/logback.xml
-Xmx2048m -Xms64m -Xmn32m
-Dfile.encoding=ISO-8859-1
-Duser.country=NL
-Duser.language=nl
-Ddatabase.type=postgres
-Dwicket.configuration=deployment
-Dlogback.statusListenerClass=ch.qos.logback.core.status.OnConsoleStatusListener
-Dorg.eclipse.jetty.server.Request.maxFormContentSize=2000000

After the update, our startup now fails with the following error:

```
Usage: java [options] [args...]
...
...
...
jetty dry run failed:
```
Is this intended behaviour?