[PATCH v2 0/4] MR7165: Use StrRetToBuf instead of reimplementing it.

[Alex Henrie (＠alexhenrie)]

We don't need copies of this function in three places.

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  v2: comdlg32: Use StrRetToBuf instead of reimplementing it.
      shell32: Use StrRetToBuf instead of reimplementing it.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/7165