Recommend 4 spaces for indentation in the style guide.
Users shouldn't worry too much about it, we will soon recommend
using Buildifier.
RELNOTES: None.
@@ -45,7 +45,9 @@ to make your files easy to process, both by humans and tools.
* When in doubt, follow the [Python style
- guide](https://www.python.org/dev/peps/pep-0008/).
+ guide](https://www.python.org/dev/peps/pep-0008/). In particular, use 4
+ 4 spaces for indentation (we previously recommended 2, but we now
+ follow the Python convention).
* Document files and functions using [docstrings](skylint.md#docstrings). Use
a docstring at the top of each `.bzl` file, and a docstring for each public
