Fix apache tests

We recently updated the apache module which added a requirement on the
$::operatingsystem fact. We were not always passing this in, so to fix
the error we need to provide this fact.

Change-Id: Ic803c9ec9feacaa774f705d978bb4d738961d605

spec/classes/keystone_init_spec.rb

@@ -1129,6 +1129,7 @@ describe 'keystone' do
     let :facts do
       @default_facts.merge(global_facts.merge({
         :osfamily               => 'RedHat',
+        :operatingsystem        => 'RedHat',
         :operatingsystemrelease => '7.0'
       }))
     end