do not split save_cmd ret value

src/llamafactory/webui/runner.py

@@ -320,12 +320,7 @@ class Runner:
             if args.get("deepspeed", None) is not None:
                 env["FORCE_TORCHRUN"] = "1"
 
-            cmd = [
-                "llamafactory-cli",
-                "train", 
-                *save_cmd(args).split(),
-            ]
-            self.trainer = Popen(cmd, env=env)
+            self.trainer = Popen(["llamafactory-cli", "train", save_cmd(args)], env=env)
             yield from self.monitor()
 
     def _form_config_dict(self, data: Dict["Component", Any]) -> Dict[str, Any]: