update arg_utils.py

vllm/engine/arg_utils.py

@@ -706,9 +706,7 @@ class EngineArgs:
         lora_group.add_argument('--max-lora-rank',
                                 **lora_kwargs["max_lora_rank"])
         lora_group.add_argument('--merge-lora',
-                                **lora_kwargs["merge-lora"])
-                            # action=argparse.BooleanOptionalAction,
-                            # help='If set to True, the weights of the base layer will be merged with the weights of Lora.')
+                                **lora_kwargs["merge_lora"])
         lora_group.add_argument('--lora-target-modules',
                             **lora_kwargs["lora_target_modules"])
         lora_group.add_argument('--lora-extra-vocab-size',