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

L10n updates for 1.7.12-rc2 * 'master' of git://github.com/git-l10n/git-po: l10n: Update Swedish translation (1168t0f0u) l10n: de.po: translate 77 new messages l10n: vi.po: update one message l10n: zh_CN.po: update one translation l10n: Update one message in git.pot