This update is based on the patch from Firas Kraiem <firas@fkraiem.org>
Fix wrong Japanese holiday name: 元旦 -> 元日
This update is based on the patch from Firas Kraiem <firas@fkraiem.org>[[ https://bugs.kde.org/show_bug.cgi?id=365241 | The Japanese holiday updates by Firas Kraiem ]] is [[ https://phabricator.kde.org/D13828 | reverted ]] because it reverts changes done after their commit.
Update author & last update day in Japan holidaysThese commits includes changes which Firas really wanted to make.