Use WSAGetLastError() on windows

Windows doesn't have h_error or hstrerror()

Reviewed-by: Richard Levitte <levitte@openssl.org>

MR: #1848
diff --git a/crypto/err/err.c b/crypto/err/err.c
index 6cb582d..64f8adc 100644
--- a/crypto/err/err.c
+++ b/crypto/err/err.c
@@ -178,6 +178,7 @@
     {ERR_PACK(0, SYS_F_SETSOCKOPT, 0), "setsockopt"},
     {ERR_PACK(0, SYS_F_GETSOCKOPT, 0), "getsockopt"},
     {ERR_PACK(0, SYS_F_GETSOCKNAME, 0), "getsockname"},
+    {ERR_PACK(0, SYS_F_GETHOSTBYNAME, 0), "gethostbyname"},
     {0, NULL},
 };