1f52f6f8f1
In the socket test, make the sockets blocking to avoid spurious
test failures. Cherry-picked from upstream Git, with
the actual diff body regenerated in the ports framework.
Obtained from: Miroslav Lichvar (upstream maintainer)
120bf44989
https://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-users/2025/08/msg00024.html