optimize newline in logs

Signed-off-by: Valentyn Faychuk <valy@detee.ltd>

src/datastore.rs

@@ -36,7 +36,7 @@ impl NodeInfo {
 
     pub fn log(&self, ip: &IP) {
         let json = format!("{{\"ip\":\"{}\",", ip) + &self.to_json()[1..];
-        if let Err(e) = Logfile::append(LOG_PATH, &format!("{}: {}", ip, &json)) {
+        if let Err(e) = Logfile::append(LOG_PATH, &format!("{}: {}\n", ip, &json)) {
             println!("Could not log node info: {:?}", e);
         }
     }

src/persistence.rs

@@ -11,7 +11,6 @@ impl Logfile {
     pub fn append(path: &str, msg: &str) -> Result<(), Box<dyn std::error::Error>> {
         let mut file = std::fs::OpenOptions::new().create(true).append(true).open(path)?;
         file.write_all(msg.as_bytes())?;
-        file.write_all(b"\n")?;
         Ok(())
     }
 }