opendkim-genzone(8) on Linux
The text c39df3a1c958, as Debian 7 (Wheezy) shipped it.
DKIM public key zone file generation tool
Flags it lists
-
-C -
-D -
-E -
-N -
-R -
-S -
-T -
-d -
-o -
-r -
-t -
-v -
-x