Use align up instead of overaligned

Author: gonzalobg

library/core/src/ptr/mod.rs

@@ -2166,10 +2166,10 @@ pub unsafe fn write_volatile<T>(dst: *mut T, src: T) {
     }
 }
 
-/// Calculate an offset to pointer `p` overaligned to alignment `a`.
+/// Calculate an offset to pointer `p` that aligns it up to alignment `a`.
 ///
 /// Calculate offset (in terms of elements of `size_of::<T>()` stride) that has to be added
-/// to pointer `p` so that pointer `p` would get overaligned to `a`.
+/// to pointer `p` so that pointer `p` would get aligned up to `a`.
 ///
 /// # Safety
 /// `a` must be a power of two.