$ ./zerofree -v ~/tmp/hoge.bin 0/8790/10240
printf("\r%u/%u/%u\n", nonzero, free,
current_fs->super->s_blocks_count) ;
$ ./zerofree -v ~/tmp/hoge.bin 0/8790/10240
printf("\r%u/%u/%u\n", nonzero, free,
current_fs->super->s_blocks_count) ;