Update prep.py
Tell how to fix
@@ -41,4 +41,6 @@ def com_google_fonts_check_072(ttFont):
else:
yield FAIL, ("'prep' table does not contain TrueType "
" instructions enabling smart dropout control."
- " Please try exporting the font with autohinting enabled.")
+ " To fix, export the font with autohinting enabled,"
+ " or run ttfautohint on the font, or run the "
+ " `gftools fix-nonhinting` script.")
