[PATCH 1/3 v2] msvcrt: _towlower_l only lowercase A-Z in C locale.

[Piotr Caban]

From: Daniel Lehman <dlehman25(a)gmail.com>

Signed-off-by: Daniel Lehman <dlehman25(a)gmail.com>
Signed-off-by: Piotr Caban <piotr(a)codeweavers.com>
---
v2:
  - changed commit message in patch 1 and 2
  - removed unused variable in patch 3

  dlls/msvcrt/tests/string.c |  2 --
  dlls/msvcrt/wcs.c          | 13 +++++++++++++
  2 files changed, 13 insertions(+), 2 deletions(-)