Add graphviz in .travis.yml

4 years ago · d6d0d4651a
1 changed files with 1 additions and 0 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -12,6 +12,7 @@ addons:
  apt:
    packages:
      - expect-dev # provides unbuffer utility
+      - graphviz

 stages:
  - linting