repeat error which leads to janis/cromwell shutting down at the end of the log

[SebastianHollizeck]

I would love it if the error, which leads to the failing of a workflow could be repeated at the end of the janis-monitor.log.

in the current state it is hard to find the actually error source, as it is drowned in the logs by shutdown messages of cromwell, so instead of having to check the rc file of every shard and then the respective stderr file it would be cool to just have a repeat after all the shutdown messages are done.