Usage:
%s
[options] <device>
Umount <device> from a directory below
%s
if policy requirements
are met (see pumount(1) for details). The mount point directory is removed
afterwards.
Options:
-l, --lazy : umount lazily, see umount(8)
-d, --debug : enable debug output (very verbose)
-h, --help : print help message and exit successfuly
--version : print version number and exit successfully