Merge tag 'l10n-2.28.0-rnd1' of https://www.github.com/git-l10n/git-po into master

Merge tag 'l10n-2.28.0-rnd1' of https://www.github.com/git-l10n/git-po into master

l10n-2.28.0-rnd1

* tag 'l10n-2.28.0-rnd1' of https://www.github.com/git-l10n/git-po:
  l10n: es: 2.28.0 round 1
  l10n: de.po: Update German translation for Git v2.28.0
  l10n: de.po: fix grammar
  l10n: zh_CN: for git v2.28.0 l10n round 1
  l10n: zh_TW.po: v2.28.0 round 1 (0 untranslated)
  l10n: vi.po: correct "ident line" translation
  l10n: vi.po(4931t): Updated translation for v2.28.0
  l10n: fr v2.28.0 round 1
  l10n: sv.po: Update Swedish translation (4931t0f0u)
  l10n: it.po: update the Italian translation for Git 2.28.0 round 1
  l10n: tr: v2.28.0 round 1
  l10n: git.pot: v2.28.0 round 1 (70 new, 14 removed)
  l10n: Update Catalan translation