Prevent a 1-byte underread of the input buffer if an odd-sized data block comes just before an uncompressed block header
void lzxd_set_output_length(struct lzxd_stream *lzx, off_t out_bytes) {
  if (lzx) lzx->length = out_bytes;
}

void lzxd_set_output_length(struct lzxd_stream *lzx, off_t out_bytes) {
  if (lzx) lzx->length = out_bytes;
}
