From bd917bbcd272c3f9b02bb07a6231860448c8d530 Mon Sep 17 00:00:00 2001
From: Mara Bos <m-ou.se@m-ou.se>
Date: Thu, 20 Apr 2023 19:38:33 +0200
Subject: [PATCH] Add reason to #![unstable] tag.

Co-authored-by: jyn <github@jyn.dev>
---
 library/core/src/fmt/rt.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/core/src/fmt/rt.rs b/library/core/src/fmt/rt.rs
index a431ee54d950..2c1a767691b8 100644
--- a/library/core/src/fmt/rt.rs
+++ b/library/core/src/fmt/rt.rs
@@ -1,5 +1,5 @@
 #![allow(missing_debug_implementations)]
-#![unstable(feature = "fmt_internals", issue = "none")]
+#![unstable(feature = "fmt_internals", reason = "internal to format_args!", issue = "none")]
 
 //! These are the lang items used by format_args!().