# user is told what's happening

    Code
      po_update(verbose = TRUE, lazy = FALSE)
    Message
      Updating 'fr' R translation
      Running system command msgmerge --update './po/R-fr.po' --backup=off --previous './po/R-test.pot'.
      . done.
      Updating 'ja' R translation
      Running system command msgmerge --update './po/R-ja.po' --backup=off --previous './po/R-test.pot'.
      . done.