wp-includes/functions.php error

Dear friends,

I downloaded wp 4.4.1 turkish language than I uploaded to ftp.
When I want to start installation I got that message

Parse error: parse error, unexpected ‘{‘ in /usr/hosts/domains/teknikortopedi/www.teknikortopedi.com/httpdocs/wp-includes/functions.php on line 2788

I checked on line 2788

try {
		$args[0] = _wp_json_sanity_check( $data, $depth );
	} catch ( Exception $e ) {
		return false;
	}

	return call_user_func_array( 'json_encode', $args );
}

What should I do ?