Minor rewording

Author: javiereguiluz

components/dependency_injection/factories.rst

@@ -71,9 +71,10 @@ class:
 .. note::
 
     When creating a service through a factory, the value chosen for the ``class``
-    option has no actual effect since the final class only depends on the object
-    returned by the factory. However, the configured class may be used by compiler
-    passes and therefore should be set to a sensible value.
+    option has no effect on the resulting service, since the actual class name
+    only depends on the object returned by the factory. However, the configured
+    class may be used by compiler passes and therefore should be set to a
+    sensible value.
 
 When you specify the class to use for the factory (via ``factory_class``)
 the method will be called statically. If the factory itself should be instantiated