dnsdbq(1) on Linux
The text 4fc60a5f0368, as Debian 11 (Bullseye) shipped it.
DNSDB query tool
Flags it lists
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-4 -
-6 -
-8 -
-A -
-B -
-G -
-I -
-J -
-L -
-M -
-N -
-O -
-R -
-S -
-U -
-V -
-b -
-c -
-d -
-f -
-g -
-h -
-i -
-j -
-k -
-l -
-m -
-n -
-p -
-q -
-r -
-s -
-t -
-u -
-v