From d9063baf227882da0f48c761abcbb08247eb1296 Mon Sep 17 00:00:00 2001
From: Victor Zverovich <viz@meta.com>
Date: Sun, 15 Oct 2023 08:23:36 -0700
Subject: [PATCH] Fix perf regression in ostream::print

---
 include/fmt/os.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/fmt/os.h b/include/fmt/os.h
index 2126424d..f3e81cfc 100644
--- a/include/fmt/os.h
+++ b/include/fmt/os.h
@@ -419,7 +419,7 @@ class FMT_API ostream {
     output to the file.
    */
   template <typename... T> void print(format_string<T...> fmt, T&&... args) {
-    vformat_to(detail::buffer_appender<char>(buffer_), fmt,
+    vformat_to(std::back_inserter(buffer_), fmt,
                fmt::make_format_args(args...));
   }
 };