Compatibility with rubocop

Author: David Heinemeier Hansson

Gemfile.lock

@@ -93,7 +93,7 @@ GEM
     nokogiri (1.12.3)
       mini_portile2 (~> 2.6.1)
       racc (~> 1.4)
-    parallel (1.20.2)
+    parallel (1.19.1)
     parser (3.0.2.0)
       ast (~> 2.4.1)
     racc (1.5.2)