calendar: Fix abbreviated day names
... if the current locale has a different starting day than Sunday.
This needed 2 fixes:
- We need to take into account
calendar->week_start
when creating/adding the appropriateday_name_labels
field - we were only calculating
calendar->week_start
after attaching theday_name_labels
, so it was still set to 0 (the default value).
Fixes #4338 (closed)