fix client-c url (#5684)
fix client-c url (#5684)

Signed-off-by: iswade <06b8be0847d8ff6ff67af5359dc136df8ca21a53@163.com>
BusyJay/tikv,BusyJay/tikv,pingcap/tikv,BusyJay/tikv,BusyJay/tikv,pingcap/tikv,c4pt0r/tikv