Change notation.

Co-authored-by: Ralf Jung <[email protected]>

library/core/src/option.rs

@@ -84,8 +84,8 @@
 //! * `#[repr(transparent)]` struct around one of the types in this list.
 //!
 //! For the above cases, it is guaranteed that one can [`mem::transmute`]
-//! from all valid values of `T` to `Option<T>` but only from
-//! `Option::Some(T)` to `T` (i.e. transmuting `None` to `<T>` is undefined
+//! from all valid values of `T` to `Option<T>` and from
+//! `Some::<T>(_)` to `T` (but transmuting `None::<T>` to `T` is undefined
 //! behaviour).
 //!
 //! # Examples