Add .adoc file extension for AsciiDoc

Add .adoc file extension for AsciiDoc as it's a very popular extension to use and the one recommended by the Asciidoctor project.

Add .adoc file extension for AsciiDoc
4239e457 · Dan Allen · fbbd9897 · 4239e457
Commit 4239e457 authored Mar 04, 2014 by Dan Allen
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tree_helper.rb app/helpers/tree_helper.rb +1 -1

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--- a/app/helpers/tree_helper.rb
+++ b/app/helpers/tree_helper.rb
@@ -40,7 +40,7 @@ module TreeHelper
  # Returns boolean
  def markup?(filename)
    filename.downcase.end_with?(*%w(.textile .rdoc .org .creole
-                                    .mediawiki .rst .asciidoc .pod))
+                                    .mediawiki .rst .adoc .asciidoc .pod))
  end

  def gitlab_markdown?(filename)