improve error reporting for 'Check no problematic formats'
improve error reporting for 'Check no problematic formats'

moyogo/fontbakery,graphicore/fontbakery,moyogo/fontbakery,googlefonts/fontbakery,moyogo/fontbakery,graphicore/fontbakery,googlefonts/fontbakery,graphicore/fontbakery,googlefonts/fontbakery