Fix syntax errors in comments
Fix syntax errors in comments

Signed-off-by: sky li (李少凯)-浪潮数据 <533614926f08e7a67b4f64ac266b1f9723849c5a@126.com>

mqliang/etcd,ajityagaty/etcd,ajityagaty/etcd,ajityagaty/etcd,mqliang/etcd,mqliang/etcd,etcd-io/etcd,etcd-io/etcd,etcd-io/etcd