delta_create(): fix the sizeof()
delta_create(): fix the sizeof()

jsilhan/hawkey,rpm-software-management/hawkey,mluscon/hawkey,MichaelMraka/hawkey,rpm-software-management/hawkey,rholy/hawkey,mluscon/hawkey,mluscon/hawkey,yavor-atanasov/hawkey,mizdebsk/hawkey,mluscon/hawkey,cgwalters/hawkey,Conan-Kudo/hawkey,Conan-Kudo/hawkey,mizdebsk/hawkey,ignatenkobrain/hawkey,yavor-atanasov/hawkey,yavor-atanasov/hawkey,Conan-Kudo/hawkey,yavor-atanasov/hawkey,megaumi/hawkey,megaumi/hawkey,ignatenkobrain/hawkey,jsilhan/hawkey,jsilhan/hawkey,ignatenkobrain/hawkey,MichaelMraka/hawkey,MichaelMraka/hawkey,MichaelMraka/hawkey,rholy/hawkey,Conan-Kudo/hawkey,rpm-software-management/hawkey,megaumi/hawkey,jsilhan/hawkey,mizdebsk/hawkey,mizdebsk/hawkey,rholy/hawkey,cgwalters/hawkey,megaumi/hawkey,cgwalters/hawkey,rpm-software-management/hawkey,cgwalters/hawkey,rholy/hawkey,ignatenkobrain/hawkey