preserving existing line wrap for multi-line comments

Signed-off-by: Michael Vorburger <mike@vorburger.ch>
Enabling Generators for JSON POC (only if -Deson2json=true..)

Signed-off-by: Michael Vorburger <mike@vorburger.ch>
minor, just better error messages

Signed-off-by: Michael Vorburger <mike@vorburger.ch>