message: neqo-server: Update ALPN for 0.9 server
  "hq-27" seems to be the most common ALPN for this, these days.
diff: @@ -40,7 +40,7 @@ struct Args {
  /// Name of keys from NSS database.
  key: Vec<String>,
  - #[structopt(short = "a", long, default_value = "http/0.9")]
  + #[structopt(short = "a", long, default_value = "hq-27")]
  /// ALPN labels to negotiate.
  ///
  /// This server still only does HTTP/0.9 no matter what the ALPN says.
  