Fixed the missing EOL in last line of crashed tests list file. Also fixed some whitespaces.

  # Create the crash list.

  fp = open(results_dir + "/layout_tests_crashed.txt", "w");

  fp.writelines('\n'.join(crashed_tests))

  for crashed_test in crashed_tests:

    fp.writelines(crashed_test + '\n')

  fp.close()

  # Count the number of tests in each category.