[PATCH] ws2_32: Fix memory leaks on error paths in unix_gethostby* (scan-build)

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=104309

Your paranoid android.


=== debian11 (32 bit report) ===

ws2_32:
protocol.c:2506: Test failed: gethostbyname("localhost") returned 4294967288.120.4294967277.125

=== debian11 (32 bit Chinese:China report) ===

ws2_32:
protocol.c:2506: Test failed: gethostbyname("localhost") returned 4294967192.4294967283.4294967244.125

=== debian11 (32 bit WoW report) ===

ws2_32:
protocol.c:2506: Test failed: gethostbyname("localhost") returned 56.92.89.126

=== debian11 (64 bit WoW report) ===

ws2_32:
protocol.c:2506: Test failed: gethostbyname("localhost") returned 4294967248.76.4294967199.126