Fix famchar to work on *otf
Fix famchar to work on *otf

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