Clarifying explanation of not needing to specify class on an abstract class.

richardmiller-zz · richardmiller-zz · commit 73994f8842e9 · 2013-03-19T10:58:18.000Z
diff --git a/components/dependency_injection/parentservices.rst b/components/dependency_injection/parentservices.rst
@@ -276,8 +276,8 @@ when the child services are instantiated.
 
 The parent service is abstract as it should not be directly retrieved from the
 container or passed into another service. It exists merely as a "template" that
-other services can use. This is why it has no ``class`` configured which would
-cause an exception to be raised for a non-abstract service.
+other services can use. This is why it can have no ``class`` configured which
+would cause an exception to be raised for a non-abstract service.
 
 .. note::
 
