[master] complete change #3882
[master] complete change #3882

Parse arguments to "rndc nta" so they can be either
long or shortened (i.e., both "-dump" and "-d" will work).

each/bind9-collab,pecharmin/bind9,each/bind9-collab,pecharmin/bind9,each/bind9-collab,each/bind9-collab,pecharmin/bind9,pecharmin/bind9,each/bind9-collab,pecharmin/bind9,pecharmin/bind9,each/bind9-collab