Tweaks from template downstream review #80 (#705)

* tweaks from template downstream review #80

* more tweaks

* Update parachain-template/node/src/command.rs

* tweaks to template and other chainspecs

* fmt

* update more tweaks from downstream

* fix build

client/cli/src/lib.rs

@@ -30,7 +30,7 @@ use std::{
 };
 use structopt::StructOpt;
 
-/// The `purge-chain` command used to remove the whole chain: the parachain and the relaychain.
+/// The `purge-chain` command used to remove the whole chain: the parachain and the relay chain.
 #[derive(Debug, StructOpt)]
 pub struct PurgeChainCmd {
 	/// The base struct of the purge-chain command.

client/network/tests/sync.rs

@@ -29,7 +29,7 @@ async fn sync_blocks_from_tip_without_being_connected_to_a_collator() {
 	let tokio_handle = tokio::runtime::Handle::current();
 
 	// start alice
-	let alice = run_relay_chain_validator_node(tokio_handle.clone(), Alice, || {}, vec![]);
+	let alice = run_relay_chain_validator_node(tokio_handle.clone(), Alice, || {}, Vec::new());
 
 	// start bob
 	let bob =

client/pov-recovery/tests/pov_recovery.rs

@@ -39,7 +39,7 @@ async fn pov_recovery() {
 		tokio_handle.clone(),
 		Alice,
 		|| {},
-		vec![],
+		Vec::new(),
 	);
 
 	// Start bob