Move spaces from before comments to within comments

tests/corelib/list_test.dart

Index: tests/corelib/list_test.dart
diff --git a/tests/corelib/list_test.dart b/tests/corelib/list_test.dart
index a72a189dde51aabb9261ee4c47a14c6916d32d1a..96367dedc14f2bbce127262d0313836c82bf56bd 100644
--- a/tests/corelib/list_test.dart
+++ b/tests/corelib/list_test.dart
@@ -64,9 +64,9 @@ void testErrors() {
     }
   }
   testIndex(list, name) {
-    testIndexError(list, list.length, name);   // Just too big.
-    testIndexError(list, -1, name);            // Negative.
-    testIndexError(list, 0x123456789, name);   // > 2^32.
+    testIndexError(list, list.length, name); //   Just too big.
+    testIndexError(list, -1, name); //            Negative.
+    testIndexError(list, 0x123456789, name); //   > 2^32.
     testIndexError(list, -0x123456789, name);  // < -2^32.
   }