[feature] #3383: Make clippy and rustfmt happy (thanks, I hate it)

`rustfmt` wants `socket_addr!(127.0.0.1: port);` to be formatted as `socket_addr!(127.0.0 .1: port);`...

There is an option to exclude a certain macro invocations from being formatted, but

1) the config option parsing seems broken rust-lang/rustfmt#5816
2) the toolchain used in CI doesn't support it

I guess we would have to live with this ugly formatting for some time...

Signed-off-by: Nikita Strygin <DCNick3@users.noreply.github.com>

core/test_network/src/lib.rs

@@ -595,9 +595,9 @@ impl PeerBuilder {
     pub fn build(&mut self) -> Result<Peer> {
         let mut peer = Peer::new()?;
         if let Some(port) = self.port.take() {
-            peer.p2p_address = socket_addr!(127.0.0.1: port);
-            peer.api_address = socket_addr!(127.0.0.1: port + 1);
-            peer.telemetry_address = socket_addr!(127.0.0.1: port + 2);
+            peer.p2p_address = socket_addr!(127.0.0 .1: port);
+            peer.api_address = socket_addr!(127.0.0 .1: port + 1);
+            peer.telemetry_address = socket_addr!(127.0.0 .1: port + 2);
             // prevent field desync
             peer.id.address = peer.p2p_address.clone();
         }

primitives/derive/src/lib.rs

@@ -1,3 +1,5 @@
+//! Crate containing procedural macros for `iroha_primitives`.
+
 mod socket_addr;
 
 /// Convenience macro to concisely construct a `SocketAddr`