From 8e8361bc42147a98920dd1bca27338f0fdc6833d Mon Sep 17 00:00:00 2001
From: nadoo <nadoo@21cn.com>
Date: Thu, 4 Jan 2018 15:26:18 +0800
Subject: [PATCH] conf: show help before error exit

---
 conf.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/conf.go b/conf.go
index 7b2ac9e..a8a6f7f 100644
--- a/conf.go
+++ b/conf.go
@@ -47,6 +47,7 @@ func confInit() {
 	flag.Usage = usage
 	err := flag.Parse()
 	if err != nil {
+		flag.Usage()
 		fmt.Fprintf(os.Stderr, "ERROR: %s\n", err)
 		os.Exit(-1)
 	}