shorthanding

src/state.rs

@@ -31,9 +31,9 @@ impl<'a, C: Connection> WmState<'a, C> {
         let wm_delete_window = conn.intern_atom(false, b"WM_DELETE_WINDOW")?;
 
         Ok(WmState {
-            conn: conn,
-            screen_num: screen_num,
-            black_gc: black_gc,
+            conn,
+            screen_num,
+            black_gc,
             windows: Vec::default(),
             wm_protocols: wm_protocols.reply()?.atom,
             wm_delete_window: wm_delete_window.reply()?.atom,