From 4e4535bf048d79a41d3890fc44f2708fd1140e89 Mon Sep 17 00:00:00 2001
From: Daniel Ceballos <daniel@cactus.fm>
Date: Wed, 14 Aug 2019 22:25:22 -0700
Subject: [PATCH] return str on to_xml_string to fix Marker col/row settings

---
 lib/axlsx/drawing/marker.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/axlsx/drawing/marker.rb b/lib/axlsx/drawing/marker.rb
index 75876fa3..cddc9b27 100644
--- a/lib/axlsx/drawing/marker.rb
+++ b/lib/axlsx/drawing/marker.rb
@@ -60,6 +60,7 @@ def to_xml_string(str = '')
       [:col, :colOff, :row, :rowOff].each do |k|
         str << ('<xdr:' << k.to_s << '>' << self.send(k).to_s << '</xdr:' << k.to_s << '>')
       end
+      str
     end
     private