Comment 10 for bug 81960

I reported two different bugs: one is that the popup appears wrongly, after a correct hibernation cycle, the other one is that the popup is uninformative. I forgot about that. It's better to mark one a dupe of the other, because the solution is the same in both cases (I think): provide more informative error messages. Then, it will be possible to know why the system "thinks" hibernation failed when it succeded.