No way to log NXDOMAIN reply?

Description

As I said in another post, I'm new to setting up my own DNS / BIND, and I have been trying to figure out how to log NXDOMAIN replies; IE when named authoritatively answers "That doesn't exist" to a query for something like "fjdkwoadghasdeithgggg.com".

It would be nice to add the actual reply sent to the client instead of just what the client requested.

If this is already possible with BIND, please let me know how. I set up a config file to include ALL logging categories to a single file and then grepped through it for NXDOMAIN or some hint to "does not exist" as an answer, and found nothing. 1500 lines of text for 3 DNS queries, and there's not a single "NXDOMAIN" in it.

Request

Add reply sent to client to logging, not just client request

Links / references

https://serverfault.com/questions/913528/named-log-nxdomain-queries-at-the-server