change help name from pep8 to pycodestyle

[xiaopeng163]

#518

Signed-off-by: Peng Xiao xiaoquwl@gmail.com

[sigmavirus24]

Hi @xiaopeng163

Thanks for sending this pull request! It's definitely a step in the right direction. You should notice, however, that the tests are failing on one minor thing. If you could fix that up, we should be able to merge this and close this issue up.

[IanLee1521]

Specifically, this is the issue: https://travis-ci.org/PyCQA/pycodestyle/jobs/134339102#L157

[xiaopeng163]

Thanks for information

I have a trouble for this error:

======================================================================
FAIL: test_styleguide_options (testsuite.test_api.APITestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/travis/build/PyCQA/pycodestyle/testsuite/test_api.py", line 169, in test_styleguide_options
    self.assertEqual(pep8style.options.ignore, ('E226', 'E24'))
AssertionError: Tuples differ: ('E121', 'E123', 'E126', 'E226... != ('E226', 'E24')
First differing element 0:
E121
E226
First tuple contains 5 additional elements.
First extra element 2:
E126
- ('E121', 'E123', 'E126', 'E226', 'E24', 'E704', 'W503')
+ ('E226', 'E24')
----------------------------------------------------------------------

[sigmavirus24]

How does this differ from #530 and #535?