Move spaces from before comments to within comments

tests/standalone/io/stdio_implicit_close_test.dart

Index: tests/standalone/io/stdio_implicit_close_test.dart
diff --git a/tests/standalone/io/stdio_implicit_close_test.dart b/tests/standalone/io/stdio_implicit_close_test.dart
index 07e8dc0693d5a4b181b1e58748b769428b405702..78da8362bfa67f30e850877ed0c83fef1c732346 100644
--- a/tests/standalone/io/stdio_implicit_close_test.dart
+++ b/tests/standalone/io/stdio_implicit_close_test.dart
@@ -17,7 +17,7 @@ void test({bool closeStdout, bool closeStderr}) {
   // is brittle, but otherwise we would need to add our own flag.
   var arguments = [
       "--print-metrics",  // Prints on stderr.
-      "--timing",         // Prints on stdout.
+      "--timing", //         Prints on stdout.
       script,
   ];
   if (closeStdout) arguments.add("stdout");