Merge pull request github#15296 from github/repo-sync

repo sync

Author: Octomerger

lib/languages.js

@@ -53,7 +53,7 @@ if (process.env.ENABLED_LANGUAGES) {
 
 export const languageKeys = Object.keys(languages)
 
-const languagePrefixPathRegex = new RegExp(`^/(${languageKeys.join('|')})/`)
+export const languagePrefixPathRegex = new RegExp(`^/(${languageKeys.join('|')})/`)
 
 export function pathLanguagePrefixed(path) {
   return languagePrefixPathRegex.test(path)