Fix int64_t use in printf
Fix int64_t use in printf

1248/liblwm2m,marcostoc/liblwm2m,javiergp/liblwm2m,dientaufan/liblwm2m,fab13n/liblwm2m,domedambrosio/liblwm2m,Passific/liblwm2m,01org/liblwm2m,sbernard31/liblwm2m,kartben/liblwm2m