Move spaces from before comments to within comments

tests/lib/convert/utf8_encode_test.dart

Index: tests/lib/convert/utf8_encode_test.dart
diff --git a/tests/lib/convert/utf8_encode_test.dart b/tests/lib/convert/utf8_encode_test.dart
index 489a12460e48c4fcbf3cec6df05a346e9c2d636c..275f664170dd160ec57775c16857629301e444e5 100644
--- a/tests/lib/convert/utf8_encode_test.dart
+++ b/tests/lib/convert/utf8_encode_test.dart
@@ -36,8 +36,8 @@ void testEncodeSlice() {
   Expect.listEquals([0x42, 0x43, 0x44],
                     encoder.convert(ascii, 1, 4));
 
-  Expect.throws(() => encoder.convert(ascii, -1));    // start < 0.
-  Expect.throws(() => encoder.convert(ascii, 6));     // start > length
+  Expect.throws(() => encoder.convert(ascii, -1)); //    start < 0.
+  Expect.throws(() => encoder.convert(ascii, 6)); //     start > length
   Expect.throws(() => encoder.convert(ascii, 0, -1)); // end < 0
   Expect.throws(() => encoder.convert(ascii, 0, 6));  // end > length
   Expect.throws(() => encoder.convert(ascii, 3, 2));  // end < start