Add a protocol version number ("1.0") to the ping response.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@2959 d4fa192b-c00b-0410-8231-f00ffab90ce4

lib/libvarnish/cli_common.c

@@ -191,5 +191,5 @@ cli_func_ping(struct cli *cli, const char * const *av, void *priv)
 	(void)priv;
 	(void)av;
 	t = time(NULL);
-	cli_out(cli, "PONG %ld", t);
+	cli_out(cli, "PONG %ld 1.0", t);
 }