[PATCH v3 0/1] MR6347: advpack: DelNode support the ADN_DEL_IF_EMPTY flag

[Anders Kjersem (＠anders)]

Fixes a bug where `rundll32.exe advpack.dll,DelNodeRunDLL32 "c:\test",1` is only supposed to delete "test" if the directory is empty.

Also causes the [DelDirs Inf section](https://www.mdgx.com/INF_web/deldirs.htm) to work correctly.

Notes:
- I changed the code so it ignores the result of `SetFileAttributesW` because the user might not have FILE_WRITE_ATTRIBUTES even if they have DELETE rights. This seems to match Windows (XP NTFS).

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  v3: advpack: DelNode support ADN_DEL_IF_EMPTY flag
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/6347