From f85a311ae14514a847831c8f9e0324121abc4814 Mon Sep 17 00:00:00 2001
From: Gerhard Schlager <mail@gerhard-schlager.at>
Date: Mon, 2 Nov 2015 20:40:50 +0100
Subject: [PATCH] add missing dependency

---
 lib/locale_file_walker.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/locale_file_walker.rb b/lib/locale_file_walker.rb
index 0ac3146e84e..4f11ea9ff86 100644
--- a/lib/locale_file_walker.rb
+++ b/lib/locale_file_walker.rb
@@ -1,4 +1,5 @@
 require 'psych'
+require 'set'
 
 class LocaleFileWalker
   protected