[System] Adding preserve event.original to System logs #6524
Description
The System syslog data stream within the System integration is currently missing the option to preserve event.original, which is inconsistent with all other integrations.
We need to add the option to the syslog datastream to ensure users can preserve the original message if required. As you can see in the image below, the option exists for system auth messages, but not system syslog.
