Update font-hackgen from 2.1.0 to 2.1.1 (#2245)
Update font-hackgen from 2.1.0 to 2.1.1 (#2245)

* Update font-hackgen from 2.1.0 to 2.1.1

* Revert irrelevant diff
alerque/homebrew-fonts,alerque/homebrew-fonts