fixed uninitialized variable warning

Modified: trunk/reactos/lib/rtl/debug.c

--- trunk/reactos/lib/rtl/debug.c	2005-09-26 11:10:27 UTC (rev 18084)
+++ trunk/reactos/lib/rtl/debug.c	2005-09-26 11:11:48 UTC (rev 18085)
@@ -256,6 +256,7 @@

     va_list ap;
 
     /* Call the internal routine that also handles ControlC */

+    va_start(ap, Format);

     return vDbgPrintExWithPrefixInternal(NULL,
                                          -1,
                                          DPFLTR_ERROR_LEVEL,