bug#51321: 29.0.50; date in modelines

[Eli Zaretskii]

> From: Niels Søndergaard <nisoni@algon.dk>
> Date: Thu, 21 Oct 2021 17:24:46 +0200
> 
> Using time in the mode or tab line can't be changed to European format
> (as far as I can see), the date in Europe is normally
> "weekday day month year hour:minutes" or in short "wkd, dd MMM yy HH:MM"

Please tell how did you try to change the format to the European
style.