proper quoting for arguments

Author: webdevvie

Resources/config/services.yml

@@ -4,17 +4,17 @@ services:
     webdevvie_pheanstalktaskqueue.service:
         class: Webdevvie\PheanstalkTaskQueueBundle\Service\TaskQueueService
         arguments:
-            - @doctrine.orm.entity_manager
-            - @webdevvie_pheanstalkconnection
-            - @jms_serializer
-            - %webdevvie_taskqueue.params%
+            - '@doctrine.orm.entity_manager'
+            - '@webdevvie_pheanstalkconnection'
+            - '@jms_serializer'
+            - '%webdevvie_taskqueue.params%'
 
     webdevvie_pheanstalkconnection:
         class: Webdevvie\PheanstalkTaskQueueBundle\Service\PheanstalkConnection
         arguments:
-            - @webdevvie_pheanstalkfactory
-            - %webdevvie_taskqueue.primary_server%
-            - %webdevvie_taskqueue.default_tube%
+            - '@webdevvie_pheanstalkfactory'
+            - '%webdevvie_taskqueue.primary_server%'
+            - '%webdevvie_taskqueue.default_tube%'
 
     webdevvie_pheanstalkfactory:
         class: Webdevvie\PheanstalkTaskQueueBundle\Service\PheanstalkFactory