AutoRefactor: fix String usage

Jean-Noel Rouvignac

17.27.2015 09231099ef1a49460ef0d04f89e02a43412c7ca6

 opendj-server-legacy/src/main/java/org/opends/server/plugins/ReferentialIntegrityPlugin.java

@@ -867,7 +867,7 @@
        setupWriter();
        for(Map.Entry<DN,DN> mapEntry : modDNmap.entrySet())
        {
          writer.write(mapEntry.getKey().toString() + "\t" + mapEntry.getValue().toString());
          writer.write(mapEntry.getKey() + "\t" + mapEntry.getValue());
          writer.newLine();
        }
        writer.flush();