Log Message:
dnscrypt-proxy2: Update to 2.0.28

* Version 2.0.28
 - Invalid server entries are now skipped instead of preventing a
source from being used. Thanks to Alison Winters for the contribution!
 - Truncated responses are immediately retried over TCP instead of
waiting for the client to retry. This reduces the latency for large
responses.
 - Responses sent to the local network are assumed to support at least
1252 bytes packets, and use optional information from EDNS up to 4096
bytes. This also reduces latency.
 - Logging improvements: servers are not logged for cached, synthetic
and cloaked responses. And the forwarder is logged instead of the
regular server for forwarded responses.