(maint) Fix test double

Rather than have both service doubles named the same thing, we need to
be able to distinguish them. This way, if something gets messed up and
the tests fail, both the name and the object id will be different. They
won't look like the same object at first glance.

Author: melissa

spec/unit/http/session_spec.rb

@@ -10,7 +10,7 @@
     double('good', url: uri, connect: nil)
   }
   let(:bad_service) {
-    service = double('good', url: uri)
+    service = double('bad', url: uri)
     allow(service).to receive(:connect).and_raise(Puppet::HTTP::ConnectionError, 'whoops')
     service
   }