I am looking to ensure my jenkins logs only output WARNING or above and so I am using the logging.properties file. I don't actually want to change the logging format but this seems to have happened and now I am trying to change it to how it was. I have this so far in my logging.properties file:
This shows the following log
On another jenkins where I haven't changed this the log is set to
What value do I need to give to java.util.logging.SimpleFormatter.format to achieve this?