Fourth exercise

Analyze and fix the following code by using the clone trait:

use std::fmt::Display;

#[derive(Debug)]
struct Person {
    name: String,
    age: i32
}

impl Display for Person {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        let representation = format!("{} is {} years old.", self.name, self.age);
        write!(f, "{}", representation)
    }
}

fn main() {
    let p1 = Person { name: String::from("Klaas"), age: 123 };

    let p2 = p1;

    println!("{}", p1);
    println!("{:?}", p2);
}