Move spaces from before comments to within comments

tests/language/factory2_negative_test.dart

Index: tests/language/factory2_negative_test.dart
diff --git a/tests/language/factory2_negative_test.dart b/tests/language/factory2_negative_test.dart
index 1db24626b45b171e28aeb7c2862c90bffe197073..44bdcb4eb4320b83e22e6814e28d794b1ffe6803 100644
--- a/tests/language/factory2_negative_test.dart
+++ b/tests/language/factory2_negative_test.dart
@@ -8,7 +8,7 @@ abstract class Link<T> {
   factory Link.create() = LinkFactory<T>.create;
 }
 
-class LinkFactory {   // Compile time error: should be LinkFactory<T> to match abstract class above
+class LinkFactory { //   Compile time error: should be LinkFactory<T> to match abstract class above
   factory Link.create() {
     return null;
   }