Merge pull request #356 from repotag/escape_rest2html_filepath

Properly escape the filepath to rest2html

Author: bkeepers

lib/github/markups.rb

@@ -1,4 +1,5 @@
 require "github/markup/markdown"
+require "shellwords"
 
 markups << GitHub::Markup::Markdown.new
 
@@ -29,7 +30,7 @@
   Asciidoctor.render(content, :safe => :secure, :attributes => %w(showtitle idprefix idseparator=- env=github env-github source-highlighter=html-pipeline))
 end
 
-command("python2 -S #{File.dirname(__FILE__)}/commands/rest2html", /re?st(\.txt)?/)
+command("python2 -S #{Shellwords.escape(File.dirname(__FILE__))}/commands/rest2html", /re?st(\.txt)?/)
 
 # pod2html is nice enough to generate a full-on HTML document for us,
 # so we return the favor by ripping out the good parts.