Fix type in list commission item

I was getting this error when compiling other things:
../../src/mobiles/artisan.c: In function ‘list_commission_item’:
../../src/mobiles/artisan.c:253:24: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 6 has type ‘money_t’ [-Wformat]
mv -f .deps/artisan.Tpo .deps/artisan.Po

I attempted to use the PRId64 macro but it hated me, so I assumed you just had a typo with %11ld and changed it to %11lld to cast it as long loooong.