humandetect: revise camera configure api

opencv-yolo/web/web.py

@@ -217,7 +217,7 @@ def take_task(task):
     else:
         # process
         task["region"] = getRegionConfig(task['cameraId'])
-        print("got region for ipc {}: {}", task['cameraId'], json.dumps(task["region"]))
+        print("got region for ipc {}: {}".format(task['cameraId'], json.dumps(task["region"])))
         video_analysis.apply_async(args=[task])
     print(json.dumps(ret))
     return ret