Index: /trunk/src/VBox/ValidationKit/tests/additions/tdAddGuestCtrl.py
===================================================================
--- /trunk/src/VBox/ValidationKit/tests/additions/tdAddGuestCtrl.py	(revision 84278)
+++ /trunk/src/VBox/ValidationKit/tests/additions/tdAddGuestCtrl.py	(revision 84279)
@@ -2263,5 +2263,5 @@
                                                 sBuf  = abBuf.decode("utf-8");
                                         if isinstance(abBuf, buffer):
-                                            sBuf = abBuf;
+                                            sBuf = str(abBuf);
                                         for sLine in sBuf.splitlines():
                                             reporter.log('%s: %s' % (sFdNm, sLine));