Applied a bunch of clippy lints.

examples/simple_ssl.rs

@@ -5,9 +5,9 @@ use irc::client::prelude::*;
 
 fn main() {
     let config = Config {
-        nickname: Some(format!("pickles")),
-        server: Some(format!("irc.fyrechat.net")),
-        channels: Some(vec![format!("#vana")]),
+        nickname: Some("pickles".to_owned()),
+        server: Some("irc.fyrechat.net".to_owned()),
+        channels: Some(vec!["#vana".to_owned()]),
         port: Some(6697),
         use_ssl: Some(true),
         .. Default::default()