[PATCH] msvcrt: Fix buffer overflow in _write function.

[Piotr Caban]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49770
Signed-off-by: Piotr Caban 
---
  dlls/msvcrt/file.c | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)