add-public-ip-address sends PortTo even when not specified

[paulzerkel]

When adding a public IP to a server like so:
clc server add-public-ip-address --server-id test --internal-ip-address 10.1.1.1 --ports port=9000,protocol=tcp

the data being POSTed to the API includes the PortTo field even though it was not specified. This results in an invalid port range being sent. The PortTo field should have the tag `json:",omitempty"` added so that it isn't included in the serialized payload.

[richardcase]

I'll have a look and make the change.

[richardcase]

Thanks @paulzerkel. Does this actually cause you an issue?

When i use the latest version and use the command line arguments you included it correctly only opens a single port and not a port range:

The request being sent:
{"InternalIpAddress":"10.146.9.22","Ports":[{"Protocol":"tcp","Port":9000,"PortTo":0}]}