[Doc] Fix typo in sql hive doc

[dhruve]

Change is too trivial to file a JIRA.

[HyukjinKwon]

Maybe I think you could try to find other typoes together (at least in other docs as you fix a typo in documentation). It seems too minor in my opinion.

[dhruve]

I wasn't scanning explicitly for these typoes. I have seen individual commits addressing such typoes earlier so submitted the super trivial change. If unnecessary we can close this.

[SparkQA]

Test build #66963 has finished for PR 15485 at commit dbccde0.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[HyukjinKwon]

Yeap, it is true and I think it is acceptable but maybe we should avoid. I guess we don't want flooding small fixes for a single typo. (This is just what I have thought consistently for those PRs not only this one)

[srowen]

Yeah, I'd prefer to encourage fixing a bunch of stuff at once, and discourage truly non-functional changes that don't meaningfully clarify something. If you add up the time everyone spends looking at it it's, shockingly, like hundreds of dollars of time. OK, I can merge it as the fastest way to resolve this but it's not worth it in general.