nill out thread private storage pointer just after making it a task variable in

the new thread so that it will not point at the other thread's task variable

src/libCom/osi/os/vxWorks/osdThread.c

@@ -107,6 +107,7 @@ static void createFunction(THREADFUNC func, void *parm)
     int tid = taskIdSelf();
 
     taskVarAdd(tid,(int *)&papTSD);
+    papTSD = 0;
     (*func)(parm);
     taskVarDelete(tid,(int *)&papTSD);
     free(papTSD);