Mistmatch on max_errors documentation

The doc mention that max_errors default to 1000.

https://github.com/apache/impala/blob/62683e0ebb78902e142975971c93b8fa011fb632/docs/topics/impala_max_errors.xml#L55

But the code actually default to 100.

https://github.com/apache/impala/blob/62683e0ebb78902e142975971c93b8fa011fb632/be/src/runtime/query-state.cc#L125 
https://github.com/apache/impala/blob/62683e0ebb78902e142975971c93b8fa011fb632/common/thrift/Query.thrift#L134