HADOOP-15441. Log kms url and token service at debug level. Contributed by Gabor Bota

(cherry picked from commit a5449d36312c3de953e05ba8b3b5acf818a0c7e7)

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/kms/KMSClientProvider.java

@@ -477,7 +477,7 @@ public class KMSClientProvider extends KeyProvider implements CryptoExtension,
                     KMS_CLIENT_ENC_KEY_CACHE_NUM_REFILL_THREADS_DEFAULT),
             new EncryptedQueueRefiller());
     authToken = new DelegationTokenAuthenticatedURL.Token();
-    LOG.info("KMSClientProvider for KMS url: {} delegation token service: {}" +
+    LOG.debug("KMSClientProvider for KMS url: {} delegation token service: {}" +
         " created.", kmsUrl, dtService);
   }