adopt @graphicore's suggestion of a simpler implementation
adopt @graphicore's suggestion of a simpler implementation

 for the 'license' condition
(issue #1388)

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