Update code to be compatible with clap v2.
Update code to be compatible with clap v2.

It used to be that --input-arg-name=[some_input] would allow you to match on some_input, so given the above, we would write code like:

let input_arg_name = value_of(&matches, "some_input");

However, in clap 2.0.x, it now only matches on the actual name of the argument, so instead of matching "some_input", we now must match on "input-arg-name", so the above becomes:

let input_arg_name = value_of(&matches, "input-arg-name");

All input args that take arguments have been updated to reflect this.

chef/delivery-cli,chef/delivery-cli,chef/delivery-cli