Some improvements to the command-line analyzer's output.

pkg/analyzer_cli/test/data/options_tests_project/test_file.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library analyzer_cli.test.data.options_test_project.test_file;
 
-
 int foo() {
 
   baz(); // Undefined function.
 
   // Missing return
 }