umount.davfs(8) on Linux
The text c8bb6507daed, as Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
Umount-helper to unmount a davfs2 file system
Flags it lists
-
--help -
--version -
-V -
-f -
-h -
-l -
-n -
-r -
-v