Fix merge

New [ERROR] entries can now appear in error log, when dropping a
a non-existent event.

Author: vaintroub

mysql-test/main/events_processlist.result

@@ -2,6 +2,7 @@
 # MDEV-34482 visibility of event worker threads to non-privileded user
 #
 call mtr.add_suppression("Event Scheduler: .*Query execution was interrupted");
+call mtr.add_suppression("Event Scheduler: .*Unknown event 'e'");
 CREATE USER u@localhost;
 GRANT EVENT ON *.* TO u@localhost;
 SET GLOBAL event_scheduler = ON;

mysql-test/main/events_processlist.test

@@ -5,6 +5,7 @@
 --echo #
 
 call mtr.add_suppression("Event Scheduler: .*Query execution was interrupted");
+call mtr.add_suppression("Event Scheduler: .*Unknown event 'e'");
 
 # Verify that a user without PROCESS privilege can see their own events
 # run by event scheduler.