AutoRefactor: fix StringBuilder usage

Jean-Noel Rouvignac

17.44.2015 998747bfaaa3c6b28bbfaf0e282e6c0ccbf46bc0

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

@@ -68,9 +68,8 @@

    if (logFile == null)
    {
      logFile =
          new File(new StringBuilder(UpgradeUtils.getInstallationPath())
              .append(File.separator).append(UPGRADELOGNAME).toString());
      logFile = new File(
          UpgradeUtils.getInstallationPath() + File.separator + UPGRADELOGNAME);
    }
    try
    {