Quote string starting with % in yaml config file

eXtreme · web-flow · commit 53bec8c4250c · 2016-06-22T12:09:02.000+02:00
diff --git a/src/Resources/config/services.yml b/src/Resources/config/services.yml
@@ -3,6 +3,6 @@ parameters:
 
 services:
     aws_sdk:
-        class: %aws_sdk.class%
+        class: "%aws_sdk.class%"
         arguments:
-            - ~
+            - ~
