Update docs for all_have_same_types.

Co-authored-by: Lawrence Mitchell <[email protected]>

cpp/include/cudf/utilities/type_checks.hpp

@@ -124,8 +124,7 @@ bool have_same_types(scalar const& lhs, scalar const& rhs);
 /**
  * @brief Compare the types of a range of `column_view` or `scalar` objects
  *
- * This function returns true if cudf::have_same_types is true for every pair of
- * consecutive objects (`column_view` or `scalar`) in the range.
+ * This function returns true if all objects in the range have the same type, in the sense of cudf::have_same_types.
  *
  * @tparam ForwardIt Forward iterator
  * @param first The first iterator