Specify a set of logger names and the corresponding log levels that
this log recorder will collect. For example, if you specify
jenkins.model and INFO then any events triggered
for jenkins.model or its descendents (e.g.
jenkins.model.Jenkins) with the log level INFO or above will
show up in this log recorder.
If you have multiple entries, a log message will only be recorded if
the most specific matching logger's level would collect it.
Also see
this document for more about logging in Java and Jenkins.