[PATCH 1/2] msvcrt: Optimize _strupr implementation in C locale

[Piotr Caban]

Don't write to input buffer when there's nothing to change (for bug
39979).

Signed-off-by: Piotr Caban <piotr at codeweavers.com>
---
  dlls/msvcrt/string.c | 24 +++++++++++++++++++++---
  1 file changed, 21 insertions(+), 3 deletions(-)


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