fixes for nightly clippy (#1618)

bridges/bin/rialto/node/src/chain_spec.rs

@@ -57,7 +57,7 @@ pub enum Alternative {
 
 /// Helper function to generate a crypto pair from seed
 pub fn get_from_seed<TPublic: Public>(seed: &str) -> <TPublic::Pair as Pair>::Public {
-	TPublic::Pair::from_string(&format!("//{}", seed), None)
+	TPublic::Pair::from_string(&format!("//{seed}"), None)
 		.expect("static values are valid; qed")
 		.public()
 }
@@ -156,7 +156,7 @@ fn endowed_accounts() -> Vec<AccountId> {
 	let all_authorities = ALL_AUTHORITIES_ACCOUNTS.iter().flat_map(|x| {
 		[
 			get_account_id_from_seed::<sr25519::Public>(x),
-			get_account_id_from_seed::<sr25519::Public>(&format!("{}//stash", x)),
+			get_account_id_from_seed::<sr25519::Public>(&format!("{x}//stash")),
 		]
 	});
 	vec![

bridges/bin/rialto/node/src/command.rs

@@ -57,7 +57,7 @@ impl SubstrateCli for Cli {
 			match id {
 				"" | "dev" => crate::chain_spec::Alternative::Development,
 				"local" => crate::chain_spec::Alternative::LocalTestnet,
-				_ => return Err(format!("Unsupported chain specification: {}", id)),
+				_ => return Err(format!("Unsupported chain specification: {id}")),
 			}
 			.load(),
 		))