newfs_hfs(8) on macOS
The text 5e4da809d4c2, 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.
construct a new HFS Plus file system
Flags it lists
-
-G -
-J -
-M -
-N -
-U -
-b -
-c -
-i -
-n -
-s -
-v