Fix Javadoc error

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/io/trunk@723941 13f79535-47bb-0310-9956-ffa450edef68

Author: sebbASF

src/java/org/apache/commons/io/comparator/DirectoryFileComparator.java

@@ -33,7 +33,7 @@
  * </pre>
  * <p>
  * Example of doing a <i>reverse</i> sort of an array of files/directories using the
- * {@link #DEFAULT_REVERSE} singleton instance:
+ * {@link #DIRECTORY_REVERSE} singleton instance:
  * <pre>
  *       File[] array = ...
  *       DirectoryFileComparator.DIRECTORY_REVERSE.sort(array);