elasticsearch/elasticsearch — pull request #8597 by damienalexandre (2014-11-21 17:52:19+00:00)
Title: Fix wrong error messages in MultiMatchQueryParser

There is an issue with the error messages of `multi_match`:

```json
{
"multi_match": {
"query": "full text search",
"fields": [ "title", "body" ]
}
}
```

If I do not have any "title" or "body" fields in my mapping, it threw a parse error: `No fields specified for match_all query`. Which is wrong both ways:

- There are fields in my query
- my query is not a "match_all" :)

This PR fix this last issue and a small typo in the doc block.