Log Message:
net/openrsync: update to openrsync-0.20220508

This brings the package in sync with the latest upstream commit.

Patches dropped, since support for (Open)BSD - specific library
functions is now handled by a configure script.

Changes are many, but neither a changelog nor a release tag has been
provided ever since the package was imported.
Refer to the github commit log instead.

Taking maintainership.