fix one scaladoc link

Author: samuelgruetter

language-adaptors/rxjava-scala/src/main/scala/rx/lang/scala/subscriptions/MultiAssignmentSubscription.scala

@@ -24,7 +24,7 @@ object MultipleAssignmentSubscription {
 
 
 /**
- * Represents a [[rx.lang.scala.subscriptions.Subscription]] whose underlying subscription can be swapped for another subscription.
+ * Represents a [[rx.lang.scala.Subscription]] whose underlying subscription can be swapped for another subscription.
  */
 class MultipleAssignmentSubscription private[scala] (val asJavaSubscription: rx.subscriptions.MultipleAssignmentSubscription)
   extends Subscription {