The last line in `data` section of the output is always empty. 

```
# clickhouse-client
ClickHouse client version 20.5.2.7 (official build).
Connecting to localhost:9001 as user default.
Connected to ClickHouse server version 20.5.2 revision 54435.

sas-vrxctd96rqw5lw25.db.yandex.net :) select 1 format JSON

SELECT 1
FORMAT JSON

{
	"meta":
	[
		{
			"name": "1",
			"type": "UInt8"
		}
	],

	"data":
	[
		{
			"1": 1

	],

	"rows": 1,

	"statistics":
	{
		"elapsed": 0.00019223,
		"rows_read": 1,
		"bytes_read": 1
	}
}

```

The issue appears only in interactive mode. In non-interactive mode clickhouse-client produces the correct output:

```
# clickhouse-client -q 'select 1 format JSON'
{
	"meta":
	[
		{
			"name": "1",
			"type": "UInt8"
		}
	],

	"data":
	[
		{
			"1": 1
		}
	],

	"rows": 1,

	"statistics":
	{
		"elapsed": 0.000220845,
		"rows_read": 1,
		"bytes_read": 1
	}
}
``` 

/// Several queries separated by ''.
         of line, not ''.
        const char * begin = text.da()
        const char * end = begin + text.size()
        hile (begin < end)
        {
            const char * pos = begin
            ASTPtr orig_ast = parseQuery(pos, end, true)
            if (!orig_ast)
            {
                if (ignore_error)
                {
                    Tokens tokens(begin, end)
                    IParser::Pos token_iterator(tokens, context.getSettingsRef().max_parser_depth)
                    hile (token_iterator->type != TokenType::Semicolon && token_iterator.isValid())
                        ++token_iterator
                    begin = token_iterator->end
                    continue
                
                return true
            
            auto * insert = orig_ast->as<ASTInsertQuery>()
            if (insert && insert->da)
            {
                pos = find_first_symbols<'\n'>(insert->da, end)
                insert->end = pos
            
            String str = text.substr(begin - text.da(), pos - begin)
            begin = pos