fix the command output (#9952)

I have verified on version v1.11
2018-08-21 22:06:42 +08:00 · 2018-08-21 22:06:42 +08:00 · 87b6b0dfe2
parent 3162ce42a0
commit 87b6b0dfe2
1 changed files with 2 additions and 2 deletions
--- a/content/en/docs/reference/access-authn-authz/authentication.md
+++ b/content/en/docs/reference/access-authn-authz/authentication.md
@ -619,8 +619,8 @@ $ kubectl drain mynode
 Error from server (Forbidden): User "clark" cannot get nodes at the cluster scope. (get nodes mynode)

 $ kubectl drain mynode --as=superman --as-group=system:masters
-node "mynode" cordoned
-node "mynode" drained
+node/mynode cordoned
+node/mynode drained
 ```

 To impersonate a user, group, or set extra fields, the impersonating user must