Fix daemon resconnection log message

src/daemon.rs

@@ -391,7 +391,7 @@ impl Daemon {
         loop {
             match self.handle_request_batch(method, params_list) {
                 Err(Error(ErrorKind::Connection(msg), _)) => {
-                    warn!("reconnecting due to {}", msg);
+                    warn!("reconnecting to bitcoind: {}", msg);
                     self.signal.wait(Duration::from_secs(3))?;
                     let mut conn = self.conn.lock().unwrap();
                     *conn = conn.reconnect()?;