SQOOP-3080: Fix comment for default metadata
transaction isolation level

(Attila Szabo)
diff --git a/src/java/org/apache/sqoop/SqoopOptions.java b/src/java/org/apache/sqoop/SqoopOptions.java
index 53cc03a..b33b54b 100644
--- a/src/java/org/apache/sqoop/SqoopOptions.java
+++ b/src/java/org/apache/sqoop/SqoopOptions.java
@@ -1062,7 +1062,7 @@
     // set default mainframe data set type to partitioned data set
     this.mainframeInputDatasetType = MainframeConfiguration.MAINFRAME_INPUT_DATASET_TYPE_PARTITIONED;
 
-    // set default transaction isolation level to TRANSACTION_READ_UNCOMMITED
+    // set default metadata transaction isolation level to TRANSACTION_READ_COMMITTED
     this.metadataTransactionIsolationLevel = Connection.TRANSACTION_READ_COMMITTED;
   }