l10n: de.po: translate 5 messages
l10n: de.po: translate 5 messages

Translate 5 new messages came from git.pot update in b8ecf23
(l10n: git.pot: v1.8.4 round 2 (5 new, 3 removed)).

Signed-off-by: Ralf Thielow <d790fea1760bfa57e221e3da971e544c5c4e0598@gmail.com>

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