[PATCH v2 0/1] MR2505: iphlpapi: Return FALSE for bad handles in IcmpCloseHandle

[Marc-Aurel Zent (＠marzent)]

Passing `NULL` or `INVALID_HANDLE_VALUE` into `IcmpCloseHandle` currently causes a segfault on wine, whereas it returns `FALSE` on windows.

It seems FFXIV occasionally does this.

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  v2: iphlpapi: Return FALSE for bad handles in IcmpCloseHandle
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2505