Rollup merge of rust-lang#133743 - bjoernager:slice-as-array, r=joboet

Fix docs for `<[T]>::as_array`.

Tracking issue: rust-lang#133508

This PR fixes a small typographical error in the docs entry for `<[T]>::as_array`.

Author: GuillaumeGomez

core/src/slice/mod.rs

@@ -858,7 +858,7 @@ impl<T> [T] {
 
     /// Gets a reference to the underlying array.
     ///
-    /// If `N` is not exactly equal to slice's the length of `self`, then this method returns `None`.
+    /// If `N` is not exactly equal to the length of `self`, then this method returns `None`.
     #[unstable(feature = "slice_as_array", issue = "133508")]
     #[inline]
     #[must_use]