Send dbg message privately

src/main.rs

@@ -85,7 +85,7 @@ async fn main() -> anyhow::Result<()> {
             Command::PRIVMSG(ref channel, ref message) => {
                 if message.starts_with("!dbg") {
                     client.send_privmsg(
-                        channel,
+                        nick,
                         format!("{:#?}", channel_users).replace("\n", "\r\n"),
                     )?;
                 }