atom/atom — pull request #2569 by philschatz (2014-06-10 03:31:12+00:00)
Title: add folded line icon

Simple tweak now that the Gutter API landed!

Screenshot:
![image](https://cloud.githubusercontent.com/assets/253202/3225392/a4b2f92a-f04f-11e3-8ab3-51cfc999641a.png)