message: nydus-image: set blob index correctly when dumping a regular file
  This is fixing a typo when setting 'device_id' for a regular file's
  chunk index.
diff: @@ -592,15 +592,10 @@ impl Node {
  let mut chunks: Vec<u8> = Vec::new();
  for chunk in self.chunks.iter() {
  let mut v6_chunk = RafsV6InodeChunkAddr::new();
  - // only one device is supported for now
  - // TODO:
  - v6_chunk.set_blob_index(1);
  + // for erofs, bump id by 1 since device id 0 is bootstrap.
  + v6_chunk.set_blob_index((chunk.blob_index() + 1) as u8);
  v6_chunk.set_block_addr((chunk.uncompressed_offset() / EROFS_BLOCK_SIZE) as u32);
  - trace!(
  - "name {:?} decomp {}",
  - self.name(),
  - chunk.uncompressed_offset()
  - );
  + trace!("name {:?} chunk {}", self.name(), chunk);
  chunks.extend(v6_chunk.as_ref());
  }
  