Explain why we need locals again in let(:ce)

spec/lib/gitlab/patch/prependable_spec.rb

@@ -35,6 +35,7 @@ describe Gitlab::Patch::Prependable do
   end
 
   let(:ce) do
+    # So that block in Module.new could see them
     prepended_modules = @prepended_modules
     ee_ = ee