fix trailing empty line

src/lib.rs

@@ -2,3 +2,4 @@ mod query;
 pub mod response;
 
 pub use query::query_server;
+pub use response::format_departures;

src/main.rs

@@ -1,11 +1,10 @@
 use anyhow::Result;
 
-use departure::query_server;
+use departure::{format_departures, query_server};
 
 fn main() -> Result<()> {
     let response = query_server()?;
-    for dep in response.departures {
-        println!("{dep}");
-    }
+    let formatted = format_departures(response);
+    println!("{formatted}");
     Ok(())
 }

src/response.rs

@@ -64,7 +64,11 @@ impl Display for Departure {
                 f.write_str(&format!(" | delayed: {actual_time} "))?;
             }
         }
-        f.write_str("\n")?;
         Ok(())
     }
 }
+
+pub fn format_departures(response: Response) -> String {
+    let departures: Vec<String> = response.departures.iter().map(|d| d.to_string()).collect();
+    departures.join("\n\n")
+}