Merge to XFA: Sort unexpected test results.

testing/tools/run_corpus_tests.py

 #!/usr/bin/env python
 # Copyright 2015 The PDFium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import optparse
 import os
 import re
 import shutil
 import subprocess
@@ skipping 55 matching lines @@
            result = test_one_file(input_filename, source_dir, working_dir,
                                   pdfium_test_path, image_differ)
            if test_suppressor.IsSuppressed(input_filename):
              if result:
                surprises.append(input_path)
            else:
              if not result:
                failures.append(input_path)
 
   if surprises:
+    surprises.sort()
     print '\n\nUnexpected Successes:'
     for surprise in surprises:
       print surprise;
 
   if failures:
+    failures.sort()
     print '\n\nSummary of Failures:'
     for failure in failures:
       print failure
     return 1
 
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())