Modify comments in MediaButtonReceiver

Bug: 24807797
Change-Id: I760cba1377ceeb7debbbefc39e452545152020f3
diff --git a/v4/java/android/support/v4/media/session/MediaButtonReceiver.java b/v4/java/android/support/v4/media/session/MediaButtonReceiver.java
index da2ce08..b0c3812 100644
--- a/v4/java/android/support/v4/media/session/MediaButtonReceiver.java
+++ b/v4/java/android/support/v4/media/session/MediaButtonReceiver.java
@@ -110,8 +110,8 @@
      * }
      * </pre>
      * @param mediaSessionCompat A {@link MediaSessionCompat} that has a
-     * {@link MediaSessionCompat.Callback} set
-     * @param intent The intent to parse
+     *            {@link MediaSessionCompat.Callback} set.
+     * @param intent The intent to parse.
      * @return The extracted {@link KeyEvent} if found, or null.
      */
     public static KeyEvent handleIntent(MediaSessionCompat mediaSessionCompat, Intent intent) {