Clarify provenance

Author: joshlf

library/core/src/mem/maybe_uninit.rs

@@ -285,9 +285,8 @@ use crate::{fmt, intrinsics, ptr, slice};
 /// # Provenance
 ///
 /// `MaybeUninit` values may contain [pointer provenance][provenance]. Concretely, for any
-/// pointer type, `P`, which contains provenance, transmuting `p: P` to
-/// `MaybeUninit<[u8; size_of::<P>]>` and then back to `P` will produce a value identical to
-/// `p`, including provenance.
+/// value, `p: P`, which contains provenance, transmuting `p` to `MaybeUninit<[u8; size_of::<P>]>`
+/// and then back to `P` will produce a value identical to `p`, including provenance.
 ///
 /// [provenance]: ../ptr/index.html#provenance
 #[stable(feature = "maybe_uninit", since = "1.36.0")]