[Merge] ~nteodosio/software-properties:dt-915 into software-properties:ubuntu/master

[Sebastien Bacher]

Review: Needs Fixing

Thanks but the text replace isn't going to work due to translations, we either need separate strings or if that's possible for some reason to use a 'neutral' wording like 'toggle' instead of enabled/disabled
-- 
https://code.launchpad.net/~nteodosio/software-properties/+git/software-properties/+merge/435528
Your team Ubuntu Core Development Team is subscribed to branch software-properties:ubuntu/master.