[StatJob] Set total amount to 1 Item
Since that's what we're operating on.
Together with plasma/plasma-workspace!1729 (merged) I now get an "Examining: path/to/file" job view for StatJobs that take a while, rather than just a useless "Examining".
(Sabotaged my StatJob
to take a while)
Edited by Kai Uwe Broulik