"Quiet" output for cron use

[animosity022]

I was going to run this via cron and it's a bit chatty now.

I manually modified to remove the echo's unless there is an update of an IP as if the IP is the same, I wanted it to be 'quiet' so I can run from cron without any output coming out.

If there is an update, I do want output as everything I have in cron emails out if there is output.