From 980e2e09a582c080954c2c5a44627099fe3eea53 Mon Sep 17 00:00:00 2001
From: Davide D'Agostino <daddye@uber.com>
Date: Thu, 4 May 2017 19:03:56 -0700
Subject: [PATCH] Document that closing two times doesn't do anything

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

diff --git a/ftp.go b/ftp.go
index 17fe35a..c29cb38 100644
--- a/ftp.go
+++ b/ftp.go
@@ -537,6 +537,7 @@ func (r *Response) Read(buf []byte) (int, error) {
 }
 
 // Close implements the io.Closer interface on a FTP data connection.
+// After the first call, Close will do nothing and return nil.
 func (r *Response) Close() error {
 	if r.closed {
 		return nil