fix function definition

code/FBX/FBXExporter.cpp

@@ -2435,7 +2435,7 @@ void FBXExporter::WriteModelNodes(
 void FBXExporter::WriteAnimationCurveNode(
     StreamWriterLE& outstream,
     int64_t uid,
-    std::string name, // "T", "R", or "S"
+    const std::string& name, // "T", "R", or "S"
     aiVector3D default_value,
     std::string property_name, // "Lcl Translation" etc
     int64_t layer_uid,