ufo2ttf.py: fix OTF generation
ufo2ttf.py: fix OTF generation

moyogo/fontbakery,googlefonts/fontbakery,googlefonts/fontbakery,graphicore/fontbakery,moyogo/fontbakery,davelab6/fontbakery,jessamynsmith/fontbakery,vitalyvolkov/fontbakery,vitalyvolkov/fontbakery,vitalyvolkov/fontbakery,graphicore/fontbakery,graphicore/fontbakery,googlefonts/fontbakery,moyogo/fontbakery