From b5e90a2e37d253e5a22df0dfbb450b9d12c28ceb Mon Sep 17 00:00:00 2001
From: Alan Liu <alan@heighten.com>
Date: Sun, 24 Jan 2016 20:24:50 -0800
Subject: [PATCH] Fix undefined symbol `x' error

---
 lib/maruku/ext/math/mathml_engines/blahtex.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/maruku/ext/math/mathml_engines/blahtex.rb b/lib/maruku/ext/math/mathml_engines/blahtex.rb
index 4acd536..4edf8c1 100644
--- a/lib/maruku/ext/math/mathml_engines/blahtex.rb
+++ b/lib/maruku/ext/math/mathml_engines/blahtex.rb
@@ -55,7 +55,7 @@ def convert_to_png_blahtex(kind, tex)
     md5 = md5.text
 
     PNG.new("#{get_setting(:html_png_url)}#{md5}.png", depth, height)
-  rescue x=> e
+  rescue => e
     maruku_error "Error: #{e}"
   end