l10n: zh_CN: for git v2.17.0 l10n round 1

Translate 132 new messages (3376t0f0u) for git 2.17.0-rc0.

Reviewed-by: 依云 <[email protected]>
Reviewed-by: Fangyi Zhou <[email protected]>
Signed-off-by: Jiang Xin <[email protected]>

Author: jiangxin