Improve output

src/main.rs

@@ -57,7 +57,7 @@ fn num_matches(t1: Ticket, t2: Ticket) -> usize {
 }
 
 fn main() -> Result<(), anyhow::Error> {
-    println!("Parsing entries");
+    println!("Parsing entries from stdin...");
 
     let reader = BufReader::new(stdin());
     let mut entries = Vec::with_capacity(NUM_ENTRIES);