
The current implementation of macOS flavor support (#119564) assumes a bundle directory that differs from both the iOS implementation and the official documentation. The [documentation](https://docs.flutter.dev/deployment/flavors) instructs developers to suffix their Xcode build configurations with `-<flavor>`, but the implementation assumes a space:5fd9ef4240/packages/flutter_tools/lib/src/macos/application_package.dart (L174-L178)
Whereas the iOS implementation, which is the reference for the docs, assumes a `-<flavor>` suffix:a257efc284/packages/flutter_tools/lib/src/ios/xcodeproj.dart (L482-L488)
This change replaces the empty space with the `-` character which is in line with the documentation and iOS implementation, as well as removing the sentence-casing applied to the flavor name; every bundle built with a flavor keeps the original flavor name in its filename. *List which issues are fixed by this PR. You must list at least one issue.* #122684. *If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].*