AutoRefactor: fix StringBuilder usage

Jean-Noel Rouvignac

17.44.2015 998747bfaaa3c6b28bbfaf0e282e6c0ccbf46bc0

 opendj-server-legacy/src/main/java/org/opends/guitools/controlpanel/ControlPanelLauncher.java

@@ -194,9 +194,8 @@
            StringBuilder buf = new StringBuilder();
            while (t != null)
            {
              StackTraceElement[] stack = t.getStackTrace();
              for (StackTraceElement aStack : stack) {
                buf.append(aStack.toString()).append("\n");
              for (StackTraceElement aStack : t.getStackTrace()) {
                buf.append(aStack).append("\n");
              }

              t = t.getCause();