From 28e08822a360d396260cec42d92704a3663e6aa9 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Thu, 2 Jun 2022 16:48:53 +0200
Subject: [PATCH] Avoid unnecessary string copy

---
 src/libutil/util.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 16fa6c54c..90418b04d 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -712,7 +712,7 @@ inline std::string operator + (const std::string & s1, std::string_view s2)
 inline std::string operator + (std::string && s, std::string_view s2)
 {
     s.append(s2);
-    return s;
+    return std::move(s);
 }
 
 }