ldns-read-zone(1) on Linux
The text 55cf2d90989f, as Debian 10 (Buster), Debian 9 (Stretch) shipped it.
read a zonefile and print it
Flags it lists
-
-0 -
-b -
-c -
-d -
-h -
-n -
-p -
-s -
-v -
-z