Actor::Base#label now describes the class nicely

lib/actor/base.rb

@@ -36,7 +36,7 @@ module Actor
     end
 
     def log_username
-      audit_usernames? ? username : "#{klass_name.downcase} with identifier #{identifier}"
+      audit_usernames? ? username : "#{label} with identifier #{identifier}"
     end
 
     private
@@ -47,6 +47,10 @@ module Actor
       self.class.to_s.split('::')[-1]
     end
 
+    def label
+      klass_name.downcase
+    end
+
     def audit_usernames?
       audit_usernames
     end