Rollup merge of rust-lang#62788 - fakenine:normalize_use_of_backticks_compiler_messages_p9, r=Centril

normalize use of backticks in compiler messages for libcore/ptr

rust-lang#60532

Author: Centril

src/libcore/ptr/unique.rs

@@ -26,8 +26,8 @@ use crate::ptr::NonNull;
 /// Unlike `*mut T`, `Unique<T>` is covariant over `T`. This should always be correct
 /// for any type which upholds Unique's aliasing requirements.
 #[unstable(feature = "ptr_internals", issue = "0",
-           reason = "use NonNull instead and consider PhantomData<T> \
-                     (if you also use #[may_dangle]), Send, and/or Sync")]
+           reason = "use `NonNull` instead and consider `PhantomData<T>` \
+                     (if you also use `#[may_dangle]`), `Send`, and/or `Sync`")]
 #[doc(hidden)]
 #[repr(transparent)]
 #[rustc_layout_scalar_valid_range_start(1)]

src/test/ui/feature-gate/issue-49983-see-issue-0.stderr

@@ -1,4 +1,4 @@
-error[E0658]: use of unstable library feature 'ptr_internals': use NonNull instead and consider PhantomData<T> (if you also use #[may_dangle]), Send, and/or Sync
+error[E0658]: use of unstable library feature 'ptr_internals': use `NonNull` instead and consider `PhantomData<T>` (if you also use `#[may_dangle]`), `Send`, and/or `Sync`
   --> $DIR/issue-49983-see-issue-0.rs:4:30
    |
 LL | #[allow(unused_imports)] use core::ptr::Unique;