Use unicode literals

Signed-off-by: Michal Čihař <michal@cihar.com>

scripts/list-translated-languages

@@ -39,7 +39,7 @@ def main():
     languages.sort()
     print 'Expected setup:'
     for lang in languages:
-        print_language(lang, fmt="    ('{0}', u'{1}'),")
+        print_language(lang, fmt="    ('{0}', '{1}'),")
 
     # prepare for checking
     languages = set(languages)