Circular references passed to logger explode

[tswaters]

I reported this under seneca-web (senecajs/seneca-web#91) as I encountered it there. When seneca-web encounters an error, it will attempt to log the argument payload which includes req and res, which are circular and effectively blows up the process.

This line specifically is where the problem is: https://github.com/senecajs/seneca/tree/v3.1.0/lib/logging.js#L45

This should probably be wrapped in a try/catch. Maybe try to parse out the object tree one level at a time so you can see at least some of the payload similar to node's util.inspect function.

Maybe just use util.inspect??