> ../os/xprintf.c: In function ‘XNFvasprintf’:
> ../os/xprintf.c:84:5: warning: function ‘XNFvasprintf’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
> 84 | int size = vasprintf(ret, format, va);
> | ^~~
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>