Merge pull request #117 from jneira/fix-stack-yaml

Fix default stack.yaml build using brittany revision

Author: jneira

stack.yaml

@@ -7,6 +7,7 @@ packages:
 extra-deps:
 - ansi-terminal-0.10.2
 - base-compat-0.11.0
+- brittany-0.12.1.1@rev:2
 - butcher-1.3.3.1
 - Cabal-3.0.2.0
 - cabal-helper-1.1.0.0