Add missing return to fix analysis (#62)

* Add missing return to fix analysis

* address comment

* Update async_queue.dart
3 files changed
tree: 871ba2fdfaf85cebfcd32c5b79f2123c80ca54b2
  1. benchmark/
  2. example/
  3. lib/
  4. test/
  5. .gitignore
  6. .test_config
  7. .travis.yml
  8. CHANGELOG.md
  9. codereview.settings
  10. LICENSE
  11. pubspec.yaml
  12. README.md
README.md

A file system watcher.

It monitors changes to contents of directories and sends notifications when files have been added, removed, or modified.