YARN-6713. Fix dead link in the Javadoc of FairSchedulerEventLog.java. Contributed by Weiwei Yang.

(cherry picked from commit 099dfe92a9743bcb7e27506f8877b8b23b0ff95a)
(cherry picked from commit 35f6c7c9c78b2749c6527dd7829546970821ae30)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairSchedulerEventLog.java

@@ -48,8 +48,8 @@ import org.apache.log4j.spi.LoggingEvent;
  * JobTracker's main log.
  *
  * Constructing this class creates a disabled log. It must be initialized
- * using {@link FairSchedulerEventLog#init(Configuration, String)} to begin
- * writing to the file.
+ * using {@link FairSchedulerEventLog#init(FairSchedulerConfiguration)} to
+ * begin writing to the file.
  */
 @Private
 @Unstable