Solution proposal for issue #1647.

Avoid a memory alignment issue.
Signed-off-by: NMatthias Kraft <Matthias.Kraft@softwareag.com>
CLA: trivial
Reviewed-by: NAndy Polyakov <appro@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1650)

test/bad_dtls_test.c

@@ -451,6 +451,7 @@ int main(int argc, char *argv[])
     BIO *rbio;
     BIO *wbio;
     BIO *err;
+    time_t now = 0;
     int testresult = 0;
     int ret;
     int i;
@@ -464,7 +465,9 @@ int main(int argc, char *argv[])
     RAND_bytes(master_secret, sizeof(master_secret));
     RAND_bytes(cookie, sizeof(cookie));
     RAND_bytes(server_random + 4, sizeof(server_random) - 4);
-    time((void *)server_random);
+
+    now = time(NULL);
+    memcpy(server_random, &now, sizeof(now));
 
     sess = client_session();
     if (sess == NULL) {