MDEV-24454 fixup: Fix plugins.feedback_plugin_send

In commit 3690c549
this test was not adjusted.

mysql-test/suite/plugins/r/feedback_plugin_send.result

@@ -24,6 +24,22 @@ VARIABLE_VALUE>0	VARIABLE_NAME
 1	Collation used latin1_swedish_ci
 1	Collation used utf8_bin
 1	Collation used utf8_general_ci
+prepare stmt from "SELECT VARIABLE_VALUE>0, VARIABLE_NAME FROM INFORMATION_SCHEMA.FEEDBACK WHERE VARIABLE_NAME LIKE 'Collation used %' ORDER BY VARIABLE_NAME";
+execute stmt;
+VARIABLE_VALUE>0	VARIABLE_NAME
+1	Collation used binary
+1	Collation used latin1_bin
+1	Collation used latin1_swedish_ci
+1	Collation used utf8_bin
+1	Collation used utf8_general_ci
+execute stmt;
+VARIABLE_VALUE>0	VARIABLE_NAME
+1	Collation used binary
+1	Collation used latin1_bin
+1	Collation used latin1_swedish_ci
+1	Collation used utf8_bin
+1	Collation used utf8_general_ci
+deallocate prepare stmt;
 set global sql_mode=ONLY_FULL_GROUP_BY;
-6: feedback plugin: report to 'http://mariadb.org/feedback_plugin/post' was sent
-6: feedback plugin: server replied 'ok'
+feedback plugin: report to 'http://mariadb.org/feedback_plugin/post' was sent
+feedback plugin: server replied 'ok'

mysql-test/suite/plugins/t/feedback_plugin_send.test

@@ -38,6 +38,6 @@ perl;
   while ($_=<LOG>) {
     $logg{$&}++ if /feedback plugin:.*/;
   }
-  print "$logg{$_}: $_\n" for sort keys %logg;
+  print "$_\n" for sort keys %logg;
   close LOG;
 EOF