named-checkconf(8) on macOS
The text 7960c13ac1ca, as Mac OS X 10.6.8, Mac OS X 10.6.7, Mac OS X 10.6.6, Mac OS X 10.6.5, Mac OS X 10.6.4, Mac OS X 10.6.3, Mac OS X 10.6.2, Mac OS X 10.6.1, Mac OS X 10.6 shipped it.
named configuration file syntax checking tool
Flags it lists
-
-h -
-j -
-t -
-v -
-z