Mark format_args_nl as #[doc(hidden)]

jonas-schievink · jonas-schievink · commit 04634e88a35d · 2021-07-23T19:04:07.000+02:00
diff --git a/library/core/src/macros/mod.rs b/library/core/src/macros/mod.rs
@@ -845,6 +845,7 @@ pub(crate) mod builtin {
                   language use and is subject to change"
     )]
     #[allow_internal_unstable(fmt_internals)]
+    #[doc(hidden)]
     #[rustc_builtin_macro]
     #[macro_export]
     macro_rules! format_args_nl {
