Bug 1321956 - Disable flake8 check for 'visually indented line with same indent as next logical line', r=ahal

MozReview-Commit-ID: ChaHkeSDNY8

.flake8

@@ -1,5 +1,5 @@
 [flake8]
 # See http://pep8.readthedocs.io/en/latest/intro.html#configuration
-ignore = E121, E123, E126, E133, E226, E241, E242, E704, W503, E402
+ignore = E121, E123, E126, E129, E133, E226, E241, E242, E704, W503, E402
 max-line-length = 99
 filename = *.py, +.lint