message: correct config language key to pt_BR
diff: @@ -164,7 +164,7 @@ LANGUAGES = {
  'zh': {'flag': 'cn', 'name': 'Chinese'},
  'ja': {'flag': 'jp', 'name': 'Japanese'},
  'de': {'flag': 'de', 'name': 'German'},
  - 'pt-BR': {'flag': 'br', 'name': 'Brazilian Portuguese'},
  + 'pt_BR': {'flag': 'br', 'name': 'Brazilian Portuguese'},
  'ru': {'flag': 'ru', 'name': 'Russian'},
  }
  # ---------------------------------------------------
  