examples: cast arguments of connect(2)

Reviewed-by: Andreas Schneider <asn@cryptomilk.org>

tests/client/torture_connect.c

@@ -128,7 +128,7 @@ static void torture_connect_socket(void **state) {
     server_addr.sin_port = htons(22);
     server_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
 
-    rc = connect(sock_fd, &server_addr, sizeof(server_addr));
+    rc = connect(sock_fd, (struct sockaddr *)&server_addr, sizeof(server_addr));
     assert_true(rc == 0);
 
     ssh_options_set(session, SSH_OPTIONS_FD, &sock_fd);