ws2_32: Allow using duplicated socket handles in closesocket().
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56927
This is similar to a08d6d8b, but just for closesocket().
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56927
This is similar to a08d6d8b, but just for closesocket().