Exceptions are not being serialized

[gyula-lakatos]

First of all, the handler is awesome! Thanks for working on it.

My problem is that whenever I print an exception like this:

logger.exception(
    "Caught an application wide error! Restarting!", exc_info=e
)

Only Caught an application wide error! Restarting! is being sent to Splunk and the exc_info parameter is ignored. Normally, the exception is printed into the console.

I think, ideally, the event variable should include an exception parameter whenever the log record's exc_info parameter is not None.