Fix some wording issues in Test specs

spec/producer/core/test_spec.rb

@@ -4,27 +4,27 @@ module Producer::Core
   describe Test do
     let(:env)         { double 'env' }
     let(:arguments)   { [:some, :arguments] }
-    subject(:action)  { Test.new(env, *arguments) }
+    subject(:test)    { Test.new(env, *arguments) }
 
     describe '#initialize' do
       it 'assigns the env' do
-        expect(action.instance_eval { @env }).to be env
+        expect(test.instance_eval { @env }).to be env
       end
 
       it 'assigns the arguments' do
-        expect(action.instance_eval { @arguments }).to eq arguments
+        expect(test.instance_eval { @arguments }).to eq arguments
       end
     end
 
     describe '#env' do
       it 'returns the assigned env' do
-        expect(action.env).to be env
+        expect(test.env).to be env
       end
     end
 
     describe '#arguments' do
       it 'returns the assigned arguments' do
-        expect(action.arguments).to eq arguments
+        expect(test.arguments).to eq arguments
       end
     end
   end