Format Rust code using rustfmt

src/vfs.rs

@@ -256,7 +256,7 @@ async fn handle_request(
             let file = open_file(open_files.clone(), path.clone(), false).await?;
             let mut file = file.lock().await;
             let mut contents = Vec::new();
-            
+
             file.read_to_end(&mut contents).await?;
 
             (