Merge git://github.com/git-l10n/git-po

Updates to German, Vietnamese and simplified Chinese translation. * git://github.com/git-l10n/git-po: l10n: de.po: translate 27 new messages l10n: Update po/vi.po to v1.7.11.rc2.2.gb694fbb l10n: zh_CN.po: translate 27 new messages l10n: Update git.pot (27 new, 1 removed messages)