[PATCH v2 0/2] MR6920: msvcp60: Fix NULL dst argument handling in wcsrtombs.

[Piotr Caban (＠piotr)]

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  v2: msvcp60/tests: Add wcsrtombs tests.
      msvcp60: Improve wcsrtombs implementation.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/6920