spec/circleci/bundle/update/pr_spec.rb in circleci-bundle-update-pr-2.0.0 vs spec/circleci/bundle/update/pr_spec.rb in circleci-bundle-update-pr-2.1.0

@@ -67,10 +67,10 @@
     context 'when Gemfile.lock is in the working dir' do
       it { is_expected.to eq 'Gemfile.lock' }
     end
 
     context "when ENV['CIRCLE_WORKING_DIRECTORY'] is not set" do
-      let(:workdir_env) {}
+      let(:workdir_env) { nil }
 
       it { is_expected.to eq 'Gemfile.lock' }
     end
 
     context "when ENV['CIRCLE_WORKING_DIRECTORY'] is relative path" do