msc: only show device name, not full info

src/main.rs

@@ -2,8 +2,7 @@ use std::io::Write;
 
 fn main() -> ! {
     let mut d = pick_device();
-    println!("{}", d);
-    println!("Events:");
+    println!("{}", d.name().unwrap_or("Unknown device"));
     loop {
         for ev in d.fetch_events().unwrap() {
             println!("{:?}", ev);