Fix typo thing->thin referring to pointer

Author: 197g

library/core/src/ptr/const_ptr.rs

@@ -72,7 +72,7 @@ impl<T: ?Sized> *const T {
 ///
 /// The resulting pointer will have provenance of `self`. This operation is semantically the
 /// same as creating a new pointer with the data pointer value of `self` but the metadata of
-/// `meta`, being fat or thing depending on the `meta` operand.
+/// `meta`, being fat or thin depending on the `meta` operand.
 ///
 /// # Examples
 ///

library/core/src/ptr/mut_ptr.rs

@@ -54,7 +54,7 @@ impl<T: ?Sized> *mut T {
 ///
 /// The resulting pointer will have provenance of `self`. This operation is semantically the
 /// same as creating a new pointer with the data pointer value of `self` but the metadata of
-/// `meta`, being fat or thing depending on the `meta` operand.
+/// `meta`, being fat or thin depending on the `meta` operand.
 ///
 /// # Examples
 ///