Comment 13 for bug 1054808

And if I read well the source code, while the messages is localized (see just below when the "Screenshot form" text is added), the date-time format is not.

Clearly the best solution would be to make it user-definable (am I hearing the screams of Gnome designers?) but nevertheless I think that the default should be sensible --- and that means generating files that are Windows-compatibles.