Fix formatting

embassy-usb-logger/src/lib.rs

@@ -204,13 +204,11 @@ macro_rules! run {
 /// This macro should only be invoked only once since it is setting the global logging state of the application.
 #[macro_export]
 macro_rules! with_class {
-    ( $x:expr, $l:expr, $p:ident ) => {
-        {
+    ( $x:expr, $l:expr, $p:ident ) => {{
         static LOGGER: ::embassy_usb_logger::UsbLogger<$x> = ::embassy_usb_logger::UsbLogger::new();
         unsafe {
             let _ = ::log::set_logger_racy(&LOGGER).map(|()| log::set_max_level_racy($l));
         }
         LOGGER.create_future_from_class($p)
-        }
-    };
+    }};
 }