Summary

As a consumer of logs collected by ClusterLogForwarder,
I want to know the originating stream of the log line
So that the stderr logs are distinguishable from stdout

Acceptance Criteria

• Verify logs written to stderr are normalized to identify the STDERR stream
• Verify logs written to stdout are normalized to identify the STDOUT stream
• Verify the upstream developer API docs are updated

Notes

• May need to investigate our impl of Vector multiline exception to see if it requires a message buffer change