From d506dad041f0bfd1bbe03efa6e91729afd28edb8 Mon Sep 17 00:00:00 2001
From: Andrew Slotin <andrew.slotin@gmail.com>
Date: Fri, 13 Oct 2017 19:01:54 +0700
Subject: [PATCH] Print out usage message to STDERR

`flag.PrintDefaults()` writes to `os.Stderr`, therefore the "Usage"
part should go there as well.
---
 boltbrowser.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/boltbrowser.go b/boltbrowser.go
index 19fa968..2a21b22 100644
--- a/boltbrowser.go
+++ b/boltbrowser.go
@@ -30,7 +30,7 @@ var args struct {
 func init() {
 	flag.DurationVar(&args.DBOpenTimeout, "timeout", DefaultDBOpenTimeout, "DB file open timeout")
 	flag.Usage = func() {
-		fmt.Fprintf(os.Stdout, "Usage: %s [OPTIONS] <filename(s)>\nOptions:\n", ProgramName)
+		fmt.Fprintf(os.Stderr, "Usage: %s [OPTIONS] <filename(s)>\nOptions:\n", ProgramName)
 		flag.PrintDefaults()
 	}
 }