Description of problem:
mysqldump test fail

Version-Release number of selected component (if applicable):
mariadb-5.5.60-1.el7_5.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Install mariadb
2. systemctl start mariadb
3. pushd /usr/share/mysql-test/
4. su mysql -c './mysql-test-run --force mysqldump 2>&1 

Actual results:
Logging: ./mysql-test-run  --force mysqldump
vardir: /usr/share/mysql-test/var
Removing old var directory...
Creating var directory '/usr/share/mysql-test/var'...
Checking supported features...
Can't exec "patch": No such file or directory at ./mysql-test-run line 1962.
MariaDB Version 5.5.60-MariaDB
Installing system database...
 - SSL connections supported
Collecting tests...

==============================================================================

TEST                                      RESULT   TIME (ms) or COMMENT
--------------------------------------------------------------------------

worker[1] Using MTR_BUILD_THREAD 300, with reserved ports 16000..16019
main.mysqldump                           [ fail ]
        Test ended at 2019-05-23 09:25:55

CURRENT_TEST: main.mysqldump
mysqldump: Couldn't find table: "non_existing"
mysqldump: Got error: 1356: "View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them" when using LOCK TABLES
mysqldump: Couldn't execute 'SHOW FIELDS FROM `v1`': View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them (1356)
mysqldump: Got error: 1083: "Field separator argument is not what is expected; check the manual" when executing 'SELECT INTO OUTFILE'
mysqldump: Got error: 1083: "Field separator argument is not what is expected; check the manual" when executing 'SELECT INTO OUTFILE'
mysqldump: Got error: 1083: "Field separator argument is not what is expected; check the manual" when executing 'SELECT INTO OUTFILE'
mysqldump: user2 has insufficent privileges to SHOW CREATE PROCEDURE `sp1`!
mysqldump: Got error: 1146: "Table 'test.???????????????????????' doesn't exist" when using LOCK TABLES
/usr/bin/mysqlimport: Error: 1146, Table 'test.words' doesn't exist, when using table: words
Error in my_thread_global_end(): 2 threads didn't exit
mysqldump: Got error: 1083: "Field separator argument is not what is expected; check the manual" when executing 'SELECT INTO OUTFILE'
mysqldump: Got error: 1083: "Field separator argument is not what is expected; check the manual" when executing 'SELECT INTO OUTFILE'
mysqldump: user1 has insufficent privileges to SHOW CREATE FUNCTION `hello1`!
mysqldump: Got error: 2005: "Unknown MySQL server host 'unknownhost' (2)" when trying to connect
mysqldump: Couldn't execute 'SHOW SLAVE STATUS': MySQL server has gone away (2006)
--- /usr/share/mysql-test/r/mysqldump.result	2018-04-20 03:16:52.000000000 -0400
+++ /usr/share/mysql-test/r/mysqldump.reject	2019-05-23 09:25:55.302921700 -0400
@@ -4318,11 +4318,12 @@
 Event	sql_mode	time_zone	Create Event	character_set_client	collation_connection	Database Collation
 ee1		UTC	CREATE DEFINER=`root`@`localhost` EVENT `ee1` ON SCHEDULE AT '2035-12-31 20:01:23' ON COMPLETION NOT PRESERVE ENABLE DO set @a=5	latin1	latin1_swedish_ci	latin1_swedish_ci
 create event ee2 on schedule at '2018-12-31 21:01:23' do set @a=5;
+Warnings:
+Note	1588	Event execution time is in the past and ON COMPLETION NOT PRESERVE is set. The event was dropped immediately after creation.
 create event ee3 on schedule at '2030-12-31 22:01:23' do set @a=5;
 show events;
 Db	Name	Definer	Time zone	Type	Execute at	Interval value	Interval field	Starts	Ends	Status	Originator	character_set_client	collation_connection	Database Collation
 second	ee1	root@localhost	UTC	ONE TIME	2035-12-31 20:01:23	NULL	NULL	NULL	NULL	ENABLED	1	latin1	latin1_swedish_ci	latin1_swedish_ci
-second	ee2	root@localhost	UTC	ONE TIME	2018-12-31 21:01:23	NULL	NULL	NULL	NULL	ENABLED	1	latin1	latin1_swedish_ci	latin1_swedish_ci
 second	ee3	root@localhost	UTC	ONE TIME	2030-12-31 22:01:23	NULL	NULL	NULL	NULL	ENABLED	1	latin1	latin1_swedish_ci	latin1_swedish_ci
 drop database second;
 create database third;
@@ -4330,7 +4331,6 @@
 show events;
 Db	Name	Definer	Time zone	Type	Execute at	Interval value	Interval field	Starts	Ends	Status	Originator	character_set_client	collation_connection	Database Collation
 third	ee1	root@localhost	UTC	ONE TIME	2035-12-31 20:01:23	NULL	NULL	NULL	NULL	ENABLED	1	latin1	latin1_swedish_ci	latin1_swedish_ci
-third	ee2	root@localhost	UTC	ONE TIME	2018-12-31 21:01:23	NULL	NULL	NULL	NULL	ENABLED	1	latin1	latin1_swedish_ci	latin1_swedish_ci
 third	ee3	root@localhost	UTC	ONE TIME	2030-12-31 22:01:23	NULL	NULL	NULL	NULL	ENABLED	1	latin1	latin1_swedish_ci	latin1_swedish_ci
 drop database third;
 set time_zone = 'SYSTEM';

mysqltest: Result length mismatch

 - saving '/usr/share/mysql-test/var/log/main.mysqldump/' to '/usr/share/mysql-test/var/log/main.mysqldump/'
--------------------------------------------------------------------------
The servers were restarted 0 times
Spent 0.000 of 8 seconds executing testcases

Completed: Failed 1/1 tests, 0.00% were successful.

Failing test(s): main.mysqldump

Expected results:
The test passes

Additional info: