fix e133 with case of no indentation

[hhatto]

Fixes #612

[codecov-commenter]

Codecov Report

Merging #618 (35aa6d8) into master (bed5b56) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #618   +/-   ##
=======================================
  Coverage   97.82%   97.82%           
=======================================
  Files           1        1           
  Lines        2392     2396    +4     
=======================================
+ Hits         2340     2344    +4     
  Misses         52       52           

Impacted Files	Coverage Δ
autopep8.py	97.82% <100.00%> (+<0.01%)	⬆️

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