adjust test to recent change in varnish-cache master

A Host: header is now added always, which accounts for another
17 bytes for connections to 127.0.0.1

src/tests/esi.vtc

@@ -51,7 +51,7 @@ varnish v1 -vcl+backend {
 
 logexpect l1 -v v1 -g request {
 	expect 0 1001   Begin   "^req .* rxreq"
-	expect * =	ReqAcct	"^18 0 18 187 104 291$"
+	expect * =	ReqAcct	"^35 0 35 187 104 291$"
 	expect 0 =      End
 } -start
 
@@ -75,7 +75,7 @@ logexpect l4 -v v1 -g request {
 
 logexpect l5 -v v1 -g request {
 	expect * 1005   Begin   "^req .* rxreq"
-	expect * =	ReqAcct	"^18 0 18 192 104 296$"
+	expect * =	ReqAcct	"^35 0 35 192 104 296$"
 	expect 0 =      End
 } -start