From 281bd30c6062e3086a7d9917d221ef887975799c Mon Sep 17 00:00:00 2001
From: Randy Morgan <digital.ipseity@gmail.com>
Date: Thu, 12 Sep 2013 23:17:10 +0900
Subject: initialize subtotal to remove warnings

---
 lib/axlsx/workbook/worksheet/pivot_table.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/axlsx/workbook/worksheet/pivot_table.rb b/lib/axlsx/workbook/worksheet/pivot_table.rb
index 9e09f52c..63819da5 100644
--- a/lib/axlsx/workbook/worksheet/pivot_table.rb
+++ b/lib/axlsx/workbook/worksheet/pivot_table.rb
@@ -24,6 +24,7 @@ module Axlsx
       @columns = []
       @data = []
       @pages = []
+      @subtotal = nil
       parse_options options
       yield self if block_given?
     end
-- 
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