grub2: gettext

 
 16.3.28 gettext
 ---------------
 
  -- Command: gettext string
      Translate STRING into the current language.
 
      The current language code is stored in the 'lang' variable in
      GRUB's environment (Seelang).  Translation files in MO format
      are read from 'locale_dir' (Seelocale_dir), usually
      '/boot/grub/locale'.