message: Prettify `host` cast as str
diff: @@ -33,7 +33,7 @@ where
  .unwrap_or(5432);
  let hostname = match host {
  - Host::Tcp(host) => &**host,
  + Host::Tcp(host) => host.as_str(),
  // postgres doesn't support TLS over unix sockets, so the choice here doesn't matter
  #[cfg(unix)]
  Host::Unix(_) => "",
  