--- tools/create-reference.rb.orig	2012-03-24 10:51:30.000000000 -0400
+++ tools/create-reference.rb	2016-11-12 10:56:11.240118336 -0500
@@ -5,6 +5,8 @@
 # Use under a public domain license.
 #
 
+Encoding.default_external = Encoding::UTF_8
+
 class Argument
     attr_accessor :name, :data_type, :doc
     def initialize