l10n: de.po: translate 1 new message

Translate 1 new message came from git.pot update in
ed1ddaf (l10n: git.pot: v1.8.2 round 4 (1 changed)).

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
l10n: zh_CN.po: translate 1 new message

Translate 1 new message came from git.pot update in ed1ddaf
(l10n: git.pot: v1.8.2 round 4 (1 changed)).

Signed-off-by: Jiang Xin <worldhello.net@gmail.com>