From d83a1d7ccd00a9e1b5d234653837b498b9b27abd Mon Sep 17 00:00:00 2001
From: Albert Nigmatzianov <albertnigma@gmail.com>
Date: Sun, 7 May 2017 10:52:40 +0200
Subject: [PATCH] Add comment for InitDefaultHelpFlag

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

diff --git a/command.go b/command.go
index ebc9ab2a..3f6a5ca4 100644
--- a/command.go
+++ b/command.go
@@ -725,6 +725,7 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
 
 // InitDefaultHelpFlag adds default help flag to c.
 // It is called automatically by executing the c or by calling help and usage.
+// If c already has help flag, it will do nothing.
 func (c *Command) InitDefaultHelpFlag() {
 	c.mergePersistentFlags()
 	if c.Flags().Lookup("help") == nil {