HADOOP-17581. Fix reference to LOG is ambiguous after HADOOP-17482. (#2764)

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestEncryptionZones.java

@@ -1421,8 +1421,7 @@ public class TestEncryptionZones {
 
     Credentials creds = new Credentials();
     final Token<?> tokens[] = dfs.addDelegationTokens("JobTracker", creds);
-    DistributedFileSystem.LOG.debug("Delegation tokens: " +
-        Arrays.asList(tokens));
+    LOG.debug("Delegation tokens: " + Arrays.asList(tokens));
     Assert.assertEquals(2, tokens.length);
     Assert.assertEquals(tokens[1], testToken);
     Assert.assertEquals(2, creds.numberOfTokens());

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestEncryptionZonesWithKMS.java

@@ -99,8 +99,7 @@ public class TestEncryptionZonesWithKMS extends TestEncryptionZones {
 
     Credentials creds = new Credentials();
     Token<?> tokens[] = fs.addDelegationTokens(renewer, creds);
-    DistributedFileSystem.LOG.debug("Delegation tokens: " +
-        Arrays.asList(tokens));
+    LOG.debug("Delegation tokens: " + Arrays.asList(tokens));
     Assert.assertEquals(2, tokens.length);
     Assert.assertEquals(2, creds.numberOfTokens());