Restore the original pep8 copyright notice

[yamt]

I guess this should have been done with the following commit:

commit 0f06de12f6a1eaab646089f7c38f1d38a035967c
Author: Steven Myint <git@stevenmyint.com>
Date:   Sat Sep 7 12:52:08 2013 -0700

    Get indentation information directly from pep8

    This greatly speeds up the "E12" indentation fixes.

The copyright notice text in this commit was copied from an old version
of pycodestyle/pep8. (commit 016cbe45f64519785fed68cb4f254d8af35ce8fb)

[codecov-io]

Codecov Report

Merging #584 (fd16cef) into master (6bd144f) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #584   +/-   ##
=======================================
  Coverage   97.81%   97.81%           
=======================================
  Files           1        1           
  Lines        2337     2337           
=======================================
  Hits         2286     2286           
  Misses         51       51           

Impacted Files	Coverage Δ
autopep8.py	97.81% <ø> (ø)

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[hhatto]

thanks