Corrected semmantics for ByteStreamOutputSvcList

Event/ByteStreamCnvSvc/ByteStreamCnvSvc/ByteStreamCnvSvc.h

@@ -60,7 +60,7 @@ private:
    std::string m_ioSvcName;
 
    /// list of service names
-   Gaudi::Property<std::vector<std::string>> m_ioSvcNameList{ this, "ByteStreamOutputSvcList", {}, "", "Set<T>"};
+   Gaudi::Property<std::vector<std::string>> m_ioSvcNameList{ this, "ByteStreamOutputSvcList", {}, "", "OrderedSet<T>"};
    
    /// Services for writing output
    std::map<std::string, ByteStreamOutputSvc*> m_ioSvcMap;