Fixed regression introduced in r11806 causing the following exception:

Jean-Noel Rouvignac

20.27.2015 b24d656c3e9e39227327319df0d6037fa01602a9

 opendj-config/src/main/java/org/forgerock/opendj/config/dsconfig/DSConfig.java

@@ -1489,6 +1489,7 @@
                    || elem.contains(batchFileArgument.getLongIdentifier())) {
                // Remove both the batch file arg and its value
                it.remove();
                it.next();
                it.remove();
                break;
            }