Roll to pickup pool changes

packages/barback/lib/src/transformer/barback_settings.dart

Index: packages/barback/lib/src/transformer/barback_settings.dart
diff --git a/packages/barback/lib/src/transformer/barback_settings.dart b/packages/barback/lib/src/transformer/barback_settings.dart
index 5b3f46caa15468ee7f0969b26091baf400a8a575..f68e31572e75513ce600deaf57f40f7046249052 100644
--- a/packages/barback/lib/src/transformer/barback_settings.dart
+++ b/packages/barback/lib/src/transformer/barback_settings.dart
@@ -48,8 +48,10 @@ class BarbackMode {
   factory BarbackMode(String name) {
     // Use canonical instances of known names.
     switch (name) {
-      case "debug": return BarbackMode.DEBUG;
-      case "release": return BarbackMode.RELEASE;
+      case "debug":
+        return BarbackMode.DEBUG;
+      case "release":
+        return BarbackMode.RELEASE;
       default:
         return new BarbackMode._(name);
     }