Fix metadata of use_inbatch_neg

Author: luxuantao

FlagEmbedding/baai_general_embedding/finetune/arguments.py

@@ -71,4 +71,4 @@ class RetrieverTrainingArguments(TrainingArguments):
     fix_position_embedding: bool = field(default=False, metadata={"help": "Freeze the parameters of position embeddings"})
     sentence_pooling_method: str = field(default='cls', metadata={"help": "the pooling method, should be cls or mean"})
     normlized: bool = field(default=True)
-    use_inbatch_neg: bool = field(default=True, metadata={"help": "Freeze the parameters of position embeddings"})
+    use_inbatch_neg: bool = field(default=True, metadata={"help": "use passages in the same batch as negatives"})