dnssec-settime(8) on macOS
The text ec2ad25ad687, as macOS 10.13.3, macOS 10.13.2, macOS 10.13.1, macOS 10.13 shipped it.
Set the key timing metadata for a DNSSEC key
Flags it lists
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-A -
-D -
-E -
-I -
-K -
-L -
-P -
-R -
-V -
-f -
-h -
-i -
-p -
-u -
-v