Merge pull request #22156 from yui-knk/fix_test_mysql

Fix test_database_created_by_root of mysql

activerecord/test/cases/tasks/mysql_rake_test.rb

@@ -104,7 +104,7 @@ def test_connection_established_as_root
       def test_database_created_by_root
         assert_permissions_granted_for "pat"
         @connection.expects(:create_database).
-          with('my-app-db', :charset => 'utf8', :collation => 'utf8_unicode_ci')
+          with('my-app-db', {})
 
         ActiveRecord::Tasks::DatabaseTasks.create @configuration
       end