AutoRefactor: fix StringBuilder usage

Jean-Noel Rouvignac

17.44.2015 998747bfaaa3c6b28bbfaf0e282e6c0ccbf46bc0

 opendj-server-legacy/src/main/java/org/opends/server/tools/ImportLDIF.java

@@ -1279,11 +1279,11 @@
  private StringBuilder join(final DN[] baseDNs, final String separator)
  {
    final StringBuilder builder = new StringBuilder();
    builder.append(baseDNs[0].toString());
    builder.append(baseDNs[0]);
    for (int i = 1; i < baseDNs.length; i++)
    {
      builder.append(separator);
      builder.append(baseDNs[i].toString());
      builder.append(baseDNs[i]);
    }
    return builder;
  }