[spec] Fix syntax error with puppet2.7 and ruby1.8.7

Refs: #205

spec/classes/cloud_cache_spec.rb

@@ -29,7 +29,7 @@ describe 'cloud::cache' do
     it 'configure memcached with some params' do
       should contain_class('memcached').with(
           :listen_ip           => '10.0.0.1',
-          :max_memory          => '60%',
+          :max_memory          => '60%'
         )
     end
   end

spec/classes/cloud_compute_hypervisor_spec.rb

@@ -219,7 +219,7 @@ describe 'cloud::compute::hypervisor' do
       should contain_class('nova::compute::libvirt').with(
           :libvirt_type      => 'kvm',
           :vncserver_listen  => '0.0.0.0',
-          :migration_support => true,
+          :migration_support => true
         )
     end
 

spec/classes/cloud_telemetry_server_spec.rb

@@ -102,7 +102,7 @@ describe 'cloud::telemetry::server' do
       should contain_class('ceilometer::expirer').with(
           :time_to_live => '2592000',
           :minute       => '0',
-          :hour         => '0',
+          :hour         => '0'
         )
     end