spec: Fix a path construction, test passes now

Explicitly pass :id, and only :id, to the route helper
for this test.

We only need the :id from the newly-constructed test restroom
in order to visit the correct path. Don't pass anything else
to the `restroom_path` route helper.

(Passing the whole array of restroom data was causing the whole
array to be erroneously interpreted as if it was the :locale
prefix in the path. Pass only the :id instead.)

spec/features/contacts_spec.rb

@@ -4,7 +4,7 @@
   it 'should show a generic contact when contact is not from restroom form' do
     restroom = create(:restroom, name: "Mission Creek Cafe")
 
-    visit restroom_path restroom
+    visit restroom_path(:id => restroom.id)
     click_link 'Contact'
 
     expect(page).to_not have_content('Mission Creek Cafe')