HADOOP-17619: Fix DelegationTokenRenewer#updateRenewalTime java doc error. (#2846). Contributed by Qi Zhu.

Signed-off-by: Ayush Saxena <ayushsaxena@apache.org>

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/DelegationTokenRenewer.java

@@ -107,7 +107,7 @@ public class DelegationTokenRenewer
      * Set a new time for the renewal.
      * It can only be called when the action is not in the queue or any
      * collection because the hashCode may change
-     * @param newTime the new time
+     * @param delay the renewal time
      */
     private void updateRenewalTime(long delay) {
       renewalTime = Time.now() + delay - delay/10;