fix up two oversights in previous doc change

- use discardOld=false also in Scala stash sample code
- correct link to UnnestedReceives sample

akka-actor-tests/src/test/scala/akka/actor/ActorDSLSpec.scala

@@ -113,7 +113,7 @@ class ActorDSLSpec extends AkkaSpec {
               case "info"   ⇒ sender ! "B"
               case "switch" ⇒ unbecome() // return to the "A" behavior
             }
-          case "lobotomize" => unbecome() // OH NOES: Actor.emptyBehavior
+          case "lobotomize" ⇒ unbecome() // OH NOES: Actor.emptyBehavior
         }
       })
       //#becomeStacked

akka-docs/rst/scala/actors.rst

@@ -696,7 +696,7 @@ behavior is not the default).
 Encoding Scala Actors nested receives without accidentally leaking memory
 -------------------------------------------------------------------------
 
-See this `Unnested receive example <@github@/akka-docs/scala/code/docs/actor/UnnestedReceives.scala>`_.
+See this `Unnested receive example <@github@/akka-docs/rst/scala/code/docs/actor/UnnestedReceives.scala>`_.
 
 
 Stash

akka-docs/rst/scala/code/docs/actor/ActorDocSpec.scala

@@ -316,13 +316,13 @@ class ActorDocSpec extends AkkaSpec(Map("akka.loglevel" -> "INFO")) {
       def receive = {
         case "open" ⇒
           unstashAll()
-          context.become {
+          context.become({
             case "write" ⇒ // do writing...
             case "close" ⇒
               unstashAll()
               context.unbecome()
             case msg ⇒ stash()
-          }
+          }, discardOld = false) // stack on top instead of replacing
         case msg ⇒ stash()
       }
     }