[telemetry] Disable fs logging if syslog is enabled (refs: #187)

manifests/telemetry.pp

@@ -98,6 +98,7 @@ class cloud::telemetry(
     rabbit_userid   => 'ceilometer',
     verbose         => $verbose,
     debug           => $debug,
+    log_dir         => $log_dir,
     use_syslog      => $use_syslog,
     log_facility    => $log_facility
   }

spec/classes/cloud_image_spec.rb

@@ -58,7 +58,7 @@ describe 'cloud::image' do
         :log_facility          => 'LOG_LOCAL0',
         :bind_host             => '10.0.0.1',
         :bind_port             => '9292',
-        :use_syslog            => true,
+        :use_syslog            => true
       )
     end
 
@@ -76,7 +76,7 @@ describe 'cloud::image' do
         :bind_port             => '9191',
         :use_syslog            => true,
         :log_dir               => false,
-        :log_file              => false,
+        :log_file              => false
       )
     end