S3 download as stream use default chunk size instead of 1 byte
@@ -419,7 +419,7 @@ class BaseS3StorageDriver(StorageDriver):
return self._get_object(
obj=obj, callback=read_in_chunks,
response=response,
- callback_kwargs={'iterator': response.iter_content(),
+ callback_kwargs={'iterator': response.iter_content(CHUNK_SIZE),
'chunk_size': chunk_size},
success_status_code=httplib.OK)
