From c254518dcd6303a9617eb75351556afc3e56fa30 Mon Sep 17 00:00:00 2001
From: Yasss <yassine@heetch.com>
Date: Thu, 2 May 2019 18:04:03 +0200
Subject: [PATCH] Add comment

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

diff --git a/backend/file/file.go b/backend/file/file.go
index e90eec0..b9a7a54 100644
--- a/backend/file/file.go
+++ b/backend/file/file.go
@@ -12,6 +12,7 @@ import (
 	"gopkg.in/yaml.v2"
 )
 
+// ErrOpenOptionalFile is returned when opening an optional file returns an error.
 type ErrOpenOptionalFile error
 
 // Backend that loads a configuration from a file.