bug fix for the problem Juan Ignacio Hervás discovered today

lib/url.c

@@ -1610,6 +1610,9 @@ static CURLcode ConnectPlease(struct connectdata *conn,
   return result;
 }
 
+/*
+ * ALERT! The 'dns' pointer being passed in here might be NULL at times.
+ */
 static void verboseconnect(struct connectdata *conn,
                            struct Curl_dns_entry *dns)
 {
@@ -1643,7 +1646,7 @@ static void verboseconnect(struct connectdata *conn,
   }
 #else
   {
-    Curl_addrinfo *hostaddr=dns->addr;
+    Curl_addrinfo *hostaddr=dns?dns->addr:NULL;
     struct in_addr in;
     (void) memcpy(&in.s_addr, &conn->serv_addr.sin_addr, sizeof (in.s_addr));
     infof(data, "Connected to %s (%s) port %d\n",