opendkim-genzone(8) on Linux
The text 04a14c4013bc, as Debian 6.0 (Squeeze) shipped it.
DKIM public key zone file generation tool
Flags it lists
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-C -
-D -
-E -
-N -
-R -
-S -
-T -
-d -
-o -
-r -
-t -
-v -
-x