[PATCH 7 of 7 v2] import-checker: check docstrings in python

[Yuya Nishihara]

On Wed, 13 Apr 2016 12:21:50 -0500, timeless wrote:
> # HG changeset patch
> # User timeless <timeless at mozdev.org>
> # Date 1460497442 0
> #      Tue Apr 12 21:44:02 2016 +0000
> # Node ID 7e891620eaded8f66262d7007307f1b986a1ba5f
> # Parent  4fb9d603c45a64c98061abd264b3f691a6f336d0
> import-checker: check docstrings in python

I don't think it's worth running import-checker against doctests because
doctests inherit globals from the surrounding module. So we would never
write future imports in doctests, and would rarely have to add imports.