When describe json response, 'null' is better than 'nil' which is not in json specification. Signed-off-by: Yi EungJun <eungjun.yi@navercorp.com> Upstream-commit: 2f69d7689dcb2ed95093599f0acef7d5445f83b0 Component: engine
When describe json response, 'null' is better than 'nil' which is not in json specification. Signed-off-by: Yi EungJun <eungjun.yi@navercorp.com> Upstream-commit: 2f69d7689dcb2ed95093599f0acef7d5445f83b0 Component: engine