[Bug 36662] valgrind shows a few memory leaks in ws2_32/tests/sock.c

https://bugs.winehq.org/show_bug.cgi?id=36662

--- Comment #2 from Austin English  ---
(In reply to Sebastian Lackner from comment #1)
> Created attachment 49347 [details]
> ws2_32/tests: Enter alertable state to ensure memory is released.
>
> The attached patch should fix the last issue (the definite leak). The
> problem is that the thread never enters an alertable state after the
> APC_USER callback has been queued.

Works here, thanks.