New comment by natrys on void-packages repository

https://github.com/void-linux/void-packages/pull/18292#issuecomment-573824199

Comment:
- The nolibffi-endian patch is no longer needed because it's fixed in upstream
- All tests passed with libffi enabled in musl, so adding it back and removing comment
- In version 230, upstream [disabled PIE builds](http://www.kylheku.com/cgit/txr/tree/RELNOTES) due to bugs and performance concerns.