Usage: zck_gen_zdict [OPTION...] <file>
zck_gen_zdict - Generate a zdict for a zchunk file

  -d, --dir=DIRECTORY        Write individual chunks to DIRECTORY (defaults to
                             temporary directory)
  -v, --verbose              Increase verbosity (can be specified more than
                             once for debugging)
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Show program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.