The format values for those are automatically handled in postRead/preWrite to choose optimal format. As such, don't write them in XML. Reduces noise. Part of https://github.com/behdad/fonttools/issues/73
The format values for those are automatically handled in postRead/preWrite to choose optimal format. As such, don't write them in XML. Reduces noise. Part of https://github.com/behdad/fonttools/issues/73