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### _Why are the changes needed?_
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fix wrong hint in test for update doc
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible
- [ ] Add screenshots for manual tests if appropriate
- [ ] [Run test](https://kyuubi.readthedocs.io/en/latest/tools/testing.html#running-tests) locally before make a pull request
Closes#827 from zhaomin1423/kyuubi_749.
Closes#749
a2b10247 [Min Zhao] fix wrong hint in test for update doc
Authored-by: Min Zhao <zhaomin1423@163.com>
Signed-off-by: Kent Yao <yao@apache.org>
3100e8c172