From 3d000f3e5f0097385bd5a232a7ecd5dc2611c4fa Mon Sep 17 00:00:00 2001
From: iamqizhao <toqizhao@gmail.com>
Date: Thu, 26 May 2016 16:50:29 -0700
Subject: [PATCH] fix a test error msg

---
 balancer_test.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/balancer_test.go b/balancer_test.go
index 976432f4..9d8d2bcd 100644
--- a/balancer_test.go
+++ b/balancer_test.go
@@ -263,7 +263,7 @@ func TestCloseWithPendingRPC(t *testing.T) {
 		defer wg.Done()
 		var reply string
 		if err := Invoke(context.Background(), "/foo/bar", &expectedRequest, &reply, cc); err == nil {
-			t.Errorf("grpc.Invoke(_, _, _, _, _) = %v, want not", err)
+			t.Errorf("grpc.Invoke(_, _, _, _, _) = %v, want not nil", err)
 		}
 	}()
 	go func() {