cargo +nightly fmt (#3540)

* cargo +nightly fmt

* add cargo-fmt check to ci

* update ci

* fmt

* fmt

* skip macro

* ignore bridges

polkadot/cli/src/cli.rs

@@ -51,10 +51,7 @@ pub enum Subcommand {
 	PvfExecuteWorker(ValidationWorkerCommand),
 
 	/// The custom benchmark subcommand benchmarking runtime pallets.
-	#[structopt(
-		name = "benchmark",
-		about = "Benchmark runtime pallets."
-	)]
+	#[structopt(name = "benchmark", about = "Benchmark runtime pallets.")]
 	Benchmark(frame_benchmarking_cli::BenchmarkCmd),
 
 	/// Try some command against runtime state.