Index: /trunk/src/VBox/Runtime/common/string/strformat.cpp
===================================================================
--- /trunk/src/VBox/Runtime/common/string/strformat.cpp	(revision 52987)
+++ /trunk/src/VBox/Runtime/common/string/strformat.cpp	(revision 52988)
@@ -182,5 +182,5 @@
      * Validate and adjust input...
      */
-    Assert(uiBase >= 2 || uiBase <= 16);
+    Assert(uiBase >= 2 && uiBase <= 16);
     if (fFlags & RTSTR_F_CAPITAL)
         pachDigits = "0123456789ABCDEF";