[4.0] 1db617d White space nit

[Lasse Karstensen]

commit 1db617d1b9c1d3d9d1dd7db1bcd4c173538ed01c
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Tue Aug 26 20:48:00 2014 +0000

    White space nit

diff --git a/bin/varnishtest/tests/r01578.vtc b/bin/varnishtest/tests/r01578.vtc
index d0835d5..a72a3c9 100644
--- a/bin/varnishtest/tests/r01578.vtc
+++ b/bin/varnishtest/tests/r01578.vtc
@@ -7,7 +7,7 @@ server s1 {
 
 varnish v1 -vcl+backend {
 	sub vcl_backend_response {
-	    	set beresp.http.x-ttl = beresp.ttl;
+		set beresp.http.x-ttl = beresp.ttl;
 	}
 	sub vcl_hit {
 		set req.http.x-remaining-ttl = obj.ttl;