bbatsov/rubocop — pull request #509 by yujinakayama (2013-09-25 14:51:03+00:00)
Title: Indicate corrected offences in formatters

This closes #501.

The appearance is just like this:
![autocorrection](https://f.cloud.github.com/assets/83656/1209911/aed43b36-25f1-11e3-9a83-0f4233bb16ad.png)