Comment 4 for bug 861234

I've backported that twisted changeset and I am now getting a single log file. However, that change is bloody hideous - it requires you to write --logger=python.file.function_that_returns_observer - which means the log file name has to be hard coded in the logger! I've worked around that, but now have a new problem

This application's log observer *has* to be set up to receive all logging, otherwise the default observer takes over and you end up with 2 log files. Which means that oops_twisted's fallback observer is now doing the logging twice, so I need a way of making it only log failures there.