Wait for the right transaction

src/tests/policy_method.vtc

@@ -416,7 +416,7 @@ varnish v1 -vcl {
 }
 
 client c1 {
-	txreq
+	txreq -url "/emptycheck"
 	rxresp
 	expect resp.status == 200
 	expect resp.http.p1 == "-2"
@@ -426,7 +426,7 @@ client c1 {
 } -run
 
 logexpect l1 -v v1 -d 1 -g vxid -q "VCL_Error" {
-        expect 0 * Begin req
+        expect * * ReqURL ^/emptycheck
         expect * = VCL_Error "^vmod hoailona error: host is empty in h.policy..$"
         expect * = VCL_Error "^vmod hoailona error: host is empty in h.policy..$"
         expect * = VCL_Error "^vmod hoailona error: path is empty in h.policy..$"