[master] eda05508f varnishtest: Use the default listen address

[Dridi Boukelmoune]

commit eda05508feeb362b4b998e160f6e670e91d262f7
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Fri May 28 11:31:21 2021 +0200

    varnishtest: Use the default listen address

diff --git a/bin/varnishtest/vtc_tunnel.c b/bin/varnishtest/vtc_tunnel.c
index 231fcc919..fc316fc35 100644
--- a/bin/varnishtest/vtc_tunnel.c
+++ b/bin/varnishtest/vtc_tunnel.c
@@ -536,7 +536,7 @@ tunnel_new(const char *name)
 
 	t->state = TUNNEL_STOPPED;
 	bprintf(t->connect, "%s", "${v1_sock}");
-	bprintf(t->listen, "%s", "127.0.0.1 0");
+	bprintf(t->listen, "%s", default_listen_addr);
 	t->csock = -1;
 	t->lsock = -1;
 	t->asock = -1;