message: tower-http: Update `tower-h2-server` example to use fmt
diff: @@ -7,8 +7,7 @@ extern crate tokio;
  extern crate tokio_trace;
  extern crate env_logger;
  extern crate tokio_trace_futures;
  -extern crate tokio_trace_log;
  -extern crate tokio_trace_subscriber;
  +extern crate tokio_trace_fmt;
  extern crate tokio_trace_tower_http;
  extern crate tower_h2;
  extern crate tower_service;
  @@ -101,11 +100,9 @@ impl tower_service::Service<()> for NewSvc {
  }
  fn main() {
  - env_logger::Builder::new()
  - .parse("tower_h2_server=trace")
  - .init();
  - let subscriber = tokio_trace_log::TraceLogger::builder()
  - .with_parent_fields(true)
  + let subscriber = tokio_trace_fmt::FmtSubscriber::builder()
  + .with_filter(tokio_trace_fmt::filter::EnvFilter::from("tower_h2_server=trace"))
  + .full()
  .finish();
  tokio_trace::subscriber::with_default(subscriber, || {
  