bug#52951: Including Swedish calendar localization (sv-kalender.el) in Emacs

[Mattias Engdegård]

> http://bigwalter.net/daniel/elisp/sv-kalender.el

Thank you!

> (setq calendar-time-display-form
>       '(24-hours ":" minutes))

Standard Swedish style uses a dot as separator; the colon appears to have crept 
in as a fairly recent Anglicism (and I think it looks a bit tacky).

The file should also use lexical-binding: t.

> (eval-after-load "solar"

We should probably use `with-eval-after-load`.

>            (eval calendar-location-name)

Would `symbol-value` do instead of `eval` here?

>         '((if (fboundp 'atan)

I think we can assume the presence of `atan`.

>               (funcall 'holiday-sexp calendar-daylight-savings-starts

>           (funcall 'holiday-sexp calendar-daylight-savings-ends

Why the explicit `funcall`s? Is this a holiday code subtlety?

By the way, is there a way to do without the defadvice? They tend to be brittle.