build: silent install

amejiarosario · amejiarosario · commit 6a4dc4de55c3 · 2019-05-09T13:17:51.000-04:00
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -85,7 +85,7 @@ jobs: # a collection of steps
 
       - run:
           name: graphviz for dot diagrams
-          command: sudo apt-get install graphviz
+          command: sudo apt-get -qq -y install graphviz
 
       - run:
           name: generate PDF
diff --git a/book/config b/book/config
@@ -1 +1 @@
-Subproject commit 4ff152c96da3e07f4681865fc665ffb331b623fc
+Subproject commit 53e9e40b21f11d99593bb9a0ebd0c680dd8044d4
