am 731f9273: am 2d94ee29: Merge "Revert "Revert "Hide _tolower_tab_ and _toupper_tab_ on LP64."""

* commit '731f9273134b861b86ef65f785f4811c2f17b5be':
  Revert "Revert "Hide _tolower_tab_ and _toupper_tab_ on LP64.""