Update dig (BIND9) to 9.9.9 (#817)
Update dig (BIND9) to 9.9.9 (#817)

SHA-256 taken from 7zip;
zip date: 4/28/16, 10:41:00 PM.
kodybrown/scoop,lukesampson/scoop,yunspace/scoop,Congee/scoop,rmyorston/scoop,saildata/scoop,vinaynambiar/lukesampson-,bpollack/scoop,nueko/scoop,r15ch13/scoop,rasa/scoop,rodericktech/scoop,berwyn/scoop,vidarkongsli/scoop,Cyianor/scoop,reelsense/scoop,systemexitzero/scoop,nikolasd/scoop,coonce/scoop,moigagoo/scoop,toxeus/scoop