mfsmount(1) on Linux
The text 508ffff5b623, as Debian 9 (Stretch) shipped it.
mount Lizard File System
Flags it lists
-
--help -
--meta -
-B -
-H -
-P -
-S -
-V -
-c -
-d -
-f -
-h -
-m -
-n -
-o -
-p -
-s