fix issue #854: "Font family name does not begin with full font name"
fix issue #854: "Font family name does not begin with full font name"

The check was mistakenly inverted. This commit fixes the problem.

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