What you're asking for is a folding variant of the INFO target. As stated by Wietse, Posfix will not alter the content but will replace non printable character (CRLF in this case) with ? in logs. So it will not do by defaut any folding for you.
Okay, now that makes more sense to me the way you worded that. Thank you very much. That is the part I was missing, I didn't understand that unfolding wasn't being done by postfix logging. So it's a design choice and what im going on about would be a QOL request at best.
