Update src/test/ui/async-await/issues/issue-78938-async-block.stderr

Co-authored-by: Esteban Kuber <estebank@users.noreply.github.com>

Author: sledgehammervampire

src/test/ui/async-await/issues/issue-78938-async-block.stderr

@@ -8,7 +8,7 @@ LL | |         game_loop(Arc::clone(&room_ref))
 LL | |     });
    | |_____^ may outlive borrowed value `room_ref`
    |
-   = note: async blocks are not executed immediately and either must take a reference or ownership of outside variables they use
+   = note: async blocks are not executed immediately and must either take a reference or ownership of outside variables they use
    = help: see https://rust-lang.github.io/async-book/03_async_await/01_chapter.html#awaiting-on-a-multithreaded-executor for more information
 help: to force the async block to take ownership of `room_ref` (and any other referenced variables), use the `move` keyword
    |