rm debug print in dump

src/storage.rs

@@ -207,7 +207,6 @@ impl Storage {
         writeln!(file, "{}", self.encoder.get_encoded_test_passphrase()?)?;
 
         for item in self.items.iter() {
-            println!("--- {}", item.id);
             writeln!(file, "{}", self.encoder.encrypt(&item.id)?)?;
             let content = self.encoder.encrypt(&item.content)?;
             writeln!(file, "{}", content)?;