Originally requested in #96 (comment):

I'd like to make a feature request for overriding a single parameter when restoring: the hostname. The hostname is used to identify the instance within collectd - restoring a the configuration with github.example.com will mess with the monitoring setup.

It'd be a huge win to be able to override certain crucial config values on restore before a config run and without having to visit the management UI. The hostname is an obvious one but I've also wanted to toggle things like email, log collection, and snmp being enabled for staging environments.

In GHE 2.2 we moved to a new config file format that's based on git-config(1). If backup-utils were to add git as a dependency, we could modify the config fairly easily before restoring. The new config file format is also designed to be much more human friendly so human editing and passing a copy of the config file directly via something like ghe-restore -f modified.conf ... should be possible as well.