Fix @link typo

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193491200

library/core/src/main/java/com/google/android/exoplayer2/Player.java

@@ -461,7 +461,7 @@ public interface Player {
 
   /**
    * Returns the error that caused playback to fail. This is the same error that will have been
-   * reported via @link Player.EventListener#onPlayerError(ExoPlaybackException)} at the time of
+   * reported via {@link Player.EventListener#onPlayerError(ExoPlaybackException)} at the time of
    * failure. It can be queried using this method until {@code stop(true)} is called or the player
    * is re-prepared.
    *