kextload(8) on macOS
The text 477611600129, as Mac OS X 10.5.8, Mac OS X 10.5.7, Mac OS X 10.5.6, Mac OS X 10.5.5, Mac OS X 10.5.4, Mac OS X 10.5.3, Mac OS X 10.5.2, Mac OS X 10.5.1, Mac OS X 10.5 shipped it.
loads, validates, and generates symbols for a kernel extension (kext)
Flags it lists
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-- -
-A -
-D -
-I -
-L -
-Z -
-a -
-b -
-c -
-d -
-e -
-h -
-i -
-k -
-l -
-m -
-n -
-p -
-q -
-r -
-s -
-t -
-v -
-x -
-z