("-h", Arg.String set_hierarchy, help_h);
("-i", Arg.Set O.indexes, help_i);
("-j", Arg.Set progress, help_j);
("-k", Arg.String set_kernel, help_k);
("-m", Arg.Set meta, help_m);
("-p", Arg.Set process, help_p);
("-h", Arg.String set_hierarchy, help_h);
("-i", Arg.Set O.indexes, help_i);
("-j", Arg.Set progress, help_j);
("-k", Arg.String set_kernel, help_k);
("-m", Arg.Set meta, help_m);
("-p", Arg.Set process, help_p);