Fix incorrect glyph names in TTF hinting files

[kili-ilo]

Thanks for fixing these, @remd!

~This resolves #500 for me (on Debian 12).~ There is still some pixel-related issue after overwriting with an alt glyph, which I didn't bother trying to solve and instead just commented it again after overwriting, but that's a later error and only occurs when using an alt glyph.

My only modification to this commit was to remove the # commenting-out of the last two lines about zero, which were related to the use of an alt glyph.