Remove spurious backticks detected by `rustdoc::unescaped_backticks`

There are only 3 cases across the crates rendered in the website (`core`,
`alloc`, `std`, `proc_macro` and `test`), and they are all in `core`.

Clean them up, so that the lint can be enabled in the next commit.

Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/library/core/src/ptr/mod.rs b/library/core/src/ptr/mod.rs
index da6b541a987..2566beeadac 100644
--- a/library/core/src/ptr/mod.rs
+++ b/library/core/src/ptr/mod.rs
@@ -786,7 +786,7 @@ where
 ///
 /// The caller must also ensure that the memory the pointer (non-transitively) points to is never
 /// written to (except inside an `UnsafeCell`) using this pointer or any pointer derived from it. If
-/// you need to mutate the pointee, use [`from_mut`]`. Specifically, to turn a mutable reference `m:
+/// you need to mutate the pointee, use [`from_mut`]. Specifically, to turn a mutable reference `m:
 /// &mut T` into `*const T`, prefer `from_mut(m).cast_const()` to obtain a pointer that can later be
 /// used for mutation.
 ///