A localized month name can contain non-ASCII characters, which will be
inserted in the string in a locale-specific encoding by strftime().
This can lead to problems: see this forum thread for an example where
an a-umlaut in a Swedish month name led to a build failure:
http://twinery.org/forum/index.php/topic,756.0.html
I picked the ISO 8601 date format for the numeric-only date.
A localized month name can contain non-ASCII characters, which will be inserted in the string in a locale-specific encoding by strftime(). This can lead to problems: see this forum thread for an example where an a-umlaut in a Swedish month name led to a build failure: http://twinery.org/forum/index.php/topic,756.0.html
I picked the ISO 8601 date format for the numeric-only date.