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
