- fprintf(stderr, "PRIOR: size=%lu, avail=%lu, used=%lu, (%d/%d)\n", buffer.size, Z->avail_out, buffer.used, status, round);
+ fprintf(stderr, "\n%3d: %3d PRIOR: size=%7lu,\tfree=%7lu,\tused=%7lu,\tavail_in=%7lu,\tavail_out=%7lu\n", round, status, buffer.size, buffer.free, buffer.used, Z->avail_in, Z->avail_out);