question: LightningCLI: how to configure logger using cmd-line args?
context: I would like to change the names of the logging directories from the default "version_{n}" to something of my own choosing. How can I do this using command-line arguments to LightningCLI?
  I know I can set the logger using trainer.logger but setting logger args e.g. trainer.logger.version does not work (unrecognized argument). So how can I pass args to the logger?
answer: See my reply here: #10574 (comment)
  We'll be adding support for shorthand notation shortly too: #11533