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

* git://github.com/git-l10n/git-po:
  l10n: correct indentation of show-branch usage
  l10n: de.po: translate 3 messages
  l10n: zh_CN: various fixes on command arguments
  l10n: vi.po(2298t): Updated 3 new strings
  l10n: sv.po: Update Swedish translation (2298t0f0u)
  l10n: fr.po v2.3.0 round 2
  l10n: git.pot: v2.3.0 round 2 (3 updated)
  l10n: de.po: translate 13 new messages
  l10n: de.po: fix typo
  l10n: de.po: translate "track" as "versionieren"
  l10n: zh_CN: translations for git v2.3.0-rc0
  l10n: sv.po: Update Swedish translation (2298t0f0u)
  l10n: fr.po v2.3.0 round 1
  l10n: vi.po(2298t): Updated and change Plural-Forms
  l10n: git.pot: v2.3.0 round 1 (13 new, 11 removed)
  l10n: ca.po: various fixes