RabbitMQ logging issues

[JamesNK]

RabbitMQ logging adds message metadata to a log entry. That is then used to output the message. However, the result is that information is duplicated in the UI:

Also, RabbitMQ logging sets the log level as an event ID. e.g. an error has a log name of "Error" with a log ID of 3. It doesn't make sense to put the log level in the log name. In structured log UI the log entry has a name of "Error" (or info, debug, etc).

RabbitMQ should leave the log level name unset.

[JamesNK]

Also, RabbitMQ is outputing a blank exception.innerexception value:

This should only be added if there is an inner exception.