pfSense

A little follow-up here. The only way I can induce an error is to try running that command as a user without sufficient privileges. There isn't much we can do about that, lots of things are intended to only be run as admin/root or through sudo, and trying to safety belt all of them isn't viable in the current codebase.

We tried to fix the other one because it was easy for it to happen in an automated manner without manual intervention by the user, but this particular error path can only happen by a deliberate user action so it's not the same situation.