Congruentsys/heroku-buildpack-graphviz — pull request #1 by trungdong (2013-10-04 12:40:22+00:00)
Title: Fixed setting paths and updated to Graphviz 2.34.0

Thank you for providing this pack. I needed to change how the paths are set and updated to Graphviz 2.34.0 at the same time. It now works on my deployment.