keep blank for english asr result (#623)

zhaomingwork

2023-06-13 4a33f08defa92ac6c9c757dbde06d29d183bf203

 funasr/runtime/python/websocket/parse_args.py

@@ -33,7 +33,7 @@
                    help="0 for cpu, 1 for gpu")
parser.add_argument("--ncpu",
                    type=int,
                    default=1,
                    default=4,
                    help="cpu cores")
parser.add_argument("--certfile",
                    type=str,