Your approach related to the prompt / secondary text seems to be fine.
In addition, more information related to other users logged before halt or reboot could be useful. You can see some examples at comments #20 and #22. By the way, I'm not so sure if this behavior is about policykit or lightdm...
@Matthew,
Your approach related to the prompt / secondary text seems to be fine.
In addition, more information related to other users logged before halt or reboot could be useful. You can see some examples at comments #20 and #22. By the way, I'm not so sure if this behavior is about policykit or lightdm...