Coverage for the last bit of vcc_expr.c

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@5138 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishtest/tests/v00020.vtc

@@ -25,3 +25,11 @@ varnish v1 -vcl {
 	}
 }
 
+varnish v1 -badvcl {
+	sub vcl_recv {
+		if (req.restarts == req.url) {
+			set req.http.foo = "foo" + 3;
+		}
+
+	}
+}