Merge pull request #1402 from practicalswift/update-dot-pep8-with-ignored-rules

[Python] Update .pep8 with ignored docstring rules

Author: practicalswift

Diff for: .pep8

@@ -1,3 +1,3 @@
 [flake8]
 filename = *.py,Benchmark_Driver,Benchmark_DTrace.in,Benchmark_GuardMalloc.in,Benchmark_RuntimeLeaksRunner.in,build-script,gyb,line-directive,ns-html2rst,recursive-lipo,rth,submit-benchmark-results,update-checkout,viewcfg
-ignore = E101,E111,E128,E302,E402,E501,W191
+ignore = D100,D101,D102,D103,D104,D105,E101,E111,E128,E302,E402,E501,W191