Fix TestRouterNotAllowed error format

router_test.go

diff --git a/router_test.go b/router_test.go
index 6292ba8..7b07dfb 100644
--- a/router_test.go
+++ b/router_test.go
@@ -176,7 +176,7 @@
 	w := httptest.NewRecorder()
 	router.ServeHTTP(w, r)
 	if !(w.Code == http.StatusMethodNotAllowed) {
-		t.Errorf("NotAllowed handling route %s failed: Code=%d, Header=%v", w.Code, w.Header())
+		t.Errorf("NotAllowed handling failed: Code=%d, Header=%v", w.Code, w.Header())
 	}
 }