Corey Stup points out that any attempt to display the message "Unable to load

any WinSock library" will lead to a segfault.

[originally from svn r8625]

windows/winnet.c

@@ -335,6 +335,7 @@ void sk_cleanup(void)
 	sktree = NULL;
     }
 
+    if (p_WSACleanup)
 	p_WSACleanup();
     if (winsock_module)
 	FreeLibrary(winsock_module);