l10n: de.po: use "das Tag" instead of "der Tag"
l10n: de.po: use "das Tag" instead of "der Tag"

Use "das Tag" to avoid confusion with the German word "Tag" (day).

Reported-by: Dirk Heinrichs <68c7bf152d5f2269378cb8ff2e3f2f7395da6369@altum.de>
Signed-off-by: Ralf Thielow <d790fea1760bfa57e221e3da971e544c5c4e0598@gmail.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git