New comment by jnbr on void-packages repository

https://github.com/void-linux/void-packages/pull/15418#issuecomment-542367363

Comment:
```
Version 1.6.1 (2019-05-21)
--------------------------

The project name changes to "pyperf" from "perf", to avoid confusion
with the `Linux perf project <https://perf.wiki.kernel.org/>`_ which has
a Python binding called "perf" as well.
```

Please point distfiles and homepage to new name as well.