proper escape language name

app/helpers/repository_languages_helper.rb

@@ -14,6 +14,6 @@ module RepositoryLanguagesHelper
       class: "progress-bar has-tooltip",
       style: "width: #{lang.share}%; background-color:#{lang.color}",
       data: { html: true },
-      title: "<span class=\"repository-language-bar-tooltip-language\">#{lang.name}</span>&nbsp;<span class=\"repository-language-bar-tooltip-share\">#{lang.share.round(1)}%</span>"
+      title: "<span class=\"repository-language-bar-tooltip-language\">#{escape_javascript(lang.name)}</span>&nbsp;<span class=\"repository-language-bar-tooltip-share\">#{lang.share.round(1)}%</span>"
   end
 end