fix bug: msg.c_str

lyblsgo

2023-04-11 dc8a0445d5460af16e9926a492a85da592f224bb

 egs_modelscope/punctuation/punc_ct-transformer_zh-cn-common-vocab272727-pytorch/infer.py

@@ -15,7 +15,7 @@
inference_pipline = pipeline(
    task=Tasks.punctuation,
    model='damo/punc_ct-transformer_zh-cn-common-vocab272727-pytorch',
    model_revision=None,
    model_revision="v1.1.7",
    output_dir="./tmp/"
)