Make retryWhen the same with the Scheduler as the retryWhen without the Scheduler.

Author: abersnaze

rxjava-core/src/main/java/rx/Observable.java

@@ -7435,7 +7435,7 @@ public final Observable<T> retryWhen(Func1<? super Observable<? extends Notifica
      * @see <a href="https://github.com/Netflix/RxJava/wiki/Error-Handling-Operators#retrywhen">RxJava Wiki: retryWhen()</a>
      * @since 0.20
      */
-    public final Observable<T> retryWhen(Func1<? super Observable<? extends Notification<?>>, ? extends Observable<? extends Notification<?>>> notificationHandler, Scheduler scheduler) {
+    public final Observable<T> retryWhen(Func1<? super Observable<? extends Notification<?>>, ? extends Observable<?>> notificationHandler, Scheduler scheduler) {
         return OnSubscribeRedo.<T> retry(this, notificationHandler, scheduler);
     }