Add reason to #![unstable] tag.

Co-authored-by: jyn <[email protected]>
rust-lang-ci · Apr 20, 2023 · bd917bb · bd917bb
1 parent 687b3fa
commit bd917bb
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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!().