Fix termios debug statement

lib/termios.c

@@ -1444,7 +1444,7 @@ int win32_serial_read( int fd, void *vb, int size )
 		err = ReadFile( index->hComm, dest + total, size, &nBytes, &index->rol );
 #ifdef DEBUG_VERBOSE
         /* warning Roy Rogers! */
-        sprintf(message, " ========== ReadFile = %i %s\n",
+        sprintf(message, " ========== ReadFile = %i 0x%x\n",
                 ( int ) nBytes, *((char *) dest + total) );
         report( message );
 #endif /* DEBUG_VERBOSE */