2.x: Minor checkstyle fixes

Author: akarnokd

src/main/java/io/reactivex/internal/schedulers/AbstractDirectTask.java

@@ -40,7 +40,7 @@ abstract class AbstractDirectTask
 
     protected static final FutureTask<Void> DISPOSED = new FutureTask<Void>(Functions.EMPTY_RUNNABLE, null);
 
-    public AbstractDirectTask(Runnable runnable) {
+    AbstractDirectTask(Runnable runnable) {
         this.runnable = runnable;
     }
 

src/main/java/io/reactivex/subjects/UnicastSubject.java

@@ -54,7 +54,7 @@ public final class UnicastSubject<T> extends Subject<T> {
     /** The optional callback when the Subject gets cancelled or terminates. */
     final AtomicReference<Runnable> onTerminate;
 
-    /** deliver onNext events before error event */
+    /** deliver onNext events before error event. */
     final boolean delayError;
 
     /** Indicates the single observer has cancelled. */