newfs(8) on OpenBSD
The text 405ffc5a11e6, as OpenBSD 2.6 shipped it.
construct a new file system
Flags it lists
-
-N -
-O -
-S -
-a -
-b -
-c -
-d -
-e -
-f -
-o -
-q -
-r -
-s -
-t -
-u -
-z