CRLF line terminators in files in zope.schema-3.8.1.zip

Files in zope.schema-3.8.0.tar.gz have LF line terminators.
Files in zope.schema-3.8.1.zip have CRLF line terminators (see output of 'file $(find -type f | sort)'), which break test suite.

$ PYTHONPATH="src" python2.7 setup.py test
running test
running egg_info
writing requirements to src/zope.schema.egg-info/requires.txt
writing src/zope.schema.egg-info/PKG-INFO
writing namespace_packages to src/zope.schema.egg-info/namespace_packages.txt
writing top-level names to src/zope.schema.egg-info/top_level.txt
writing dependency_links to src/zope.schema.egg-info/dependency_links.txt
reading manifest file 'src/zope.schema.egg-info/SOURCES.txt'
writing manifest file 'src/zope.schema.egg-info/SOURCES.txt'
running build_ext
Traceback (most recent call last):
  File "setup.py", line 91, in <module>
    tests_require='zope.testing',
  File "/usr/lib64/python2.7/distutils/core.py", line 152, in setup
    dist.run_commands()
  File "/usr/lib64/python2.7/distutils/dist.py", line 953, in run_commands
    self.run_command(cmd)
  File "/usr/lib64/python2.7/distutils/dist.py", line 972, in run_command
    cmd_obj.run()
  File "/usr/lib64/python2.7/site-packages/setuptools/command/test.py", line 137, in run
    self.with_project_on_sys_path(self.run_tests)
  File "/usr/lib64/python2.7/site-packages/setuptools/command/test.py", line 117, in with_project_on_sys_path
    func()
  File "/usr/lib64/python2.7/site-packages/setuptools/command/test.py", line 146, in run_tests
    testLoader = loader_class()
  File "/usr/lib64/python2.7/unittest/main.py", line 94, in __init__
    self.parseArgs(argv)
  File "/usr/lib64/python2.7/unittest/main.py", line 149, in parseArgs
    self.createTests()
  File "/usr/lib64/python2.7/unittest/main.py", line 158, in createTests
    self.module)
  File "/usr/lib64/python2.7/unittest/loader.py", line 128, in loadTestsFromNames
    suites = [self.loadTestsFromName(name, module) for name in names]
  File "/usr/lib64/python2.7/unittest/loader.py", line 113, in loadTestsFromName
    test = obj()
  File "setup.py", line 56, in alltests
    suite.addTest(mod.test_suite())
  File "/tmp/zope.schema-3.8.1/src/zope/schema/tests/test_docs.py", line 28, in test_suite
    doctest.DocFileSuite('../sources.txt', optionflags=doctest.ELLIPSIS),
  File "/usr/lib64/python2.7/doctest.py", line 2453, in DocFileSuite
    suite.addTest(DocFileTest(path, **kw))
  File "/usr/lib64/python2.7/doctest.py", line 2385, in DocFileTest
    test = parser.get_doctest(doc, globs, name, path, 0)
  File "/usr/lib64/python2.7/doctest.py", line 610, in get_doctest
    return DocTest(self.get_examples(string, name), globs,
  File "/usr/lib64/python2.7/doctest.py", line 624, in get_examples
    return [x for x in self.parse(string, name)
  File "/usr/lib64/python2.7/doctest.py", line 586, in parse
    self._parse_example(m, name, lineno)
  File "/usr/lib64/python2.7/doctest.py", line 656, in _parse_example
    lineno + len(source_lines))
  File "/usr/lib64/python2.7/doctest.py", line 742, in _check_prefix
    (lineno+i+1, name, line))
ValueError: line 52 of the docstring for sources.txt has inconsistent leading whitespace: '\r'