Fix Python – What is PEP8’s E128: continuation line under-indented for visual indent?

Just opened a file with Sublime Text (with Sublime Linter) and noticed a PEP8 formatting error that I’d never seen before. Here’s the text:
urlpatterns = patterns(”,
url(r’^$’, listing, name=’investment-listing’),
)

It’s flagging the second argument, the line that starts url(…)
I was about to disable this check in ST2 but I’d like to know ….