From c3e9588849195eefa783417c3a53d092f6e93526 Mon Sep 17 00:00:00 2001
From: Yasuhiro Matsumoto <mattn.jp@gmail.com>
Date: Thu, 11 Aug 2016 18:51:38 +0900
Subject: Close file

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

diff --git a/tool/upgrade.go b/tool/upgrade.go
index aaca783..4e99635 100644
--- a/tool/upgrade.go
+++ b/tool/upgrade.go
@@ -69,6 +69,7 @@ func main() {
 			log.Fatal(err)
 		}
 		_, err = io.Copy(f, zr)
+		f.Close()
 		if err != nil {
 			log.Fatal(err)
 		}
-- 
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