MDEV-6076 Adjust a test result.

This test and result had been modified in WL#6204, but I missed it,
because the test had been renamed from
innodb_fts.innodb_fts_plugin to innodb_fts.plugin.

mysql-test/suite/innodb_fts/r/innodb_fts_plugin.result

@@ -139,8 +139,8 @@ INSERT INTO articles (title, body) VALUES
 SELECT * FROM articles WHERE
 MATCH(title, body) AGAINST('Tricks');
 id	title	body
-4	1001 MySQL Tricks	How to use full-text search engine
-5	Go MySQL Tricks	How to use full text search engine
+9	1001 MySQL Tricks	How to use full-text search engine
+10	Go MySQL Tricks	How to use full text search engine
 SELECT COUNT(*) FROM articles;
 COUNT(*)
 5