MariaDB Test Suite issue with test sys_vars.secure_file_priv.test

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TEST                                      RESULT   TIME (ms) or COMMENT

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worker[1] Using MTR_BUILD_THREAD 300, with reserved ports 16000..16019

connect.secure_file_priv                 [ pass ]      2

sys_vars.secure_file_priv                [ fail ]

        Test ended at 2016-11-24 12:36:38

CURRENT_TEST: sys_vars.secure_file_priv

mysqltest: In included file "/usr/share/mysql-test/var/tmp/bug50373.inc":

included from /usr/share/mysql-test/suite/sys_vars/t/secure_file_priv.test at line 34:

At line 1: query 'SELECT * FROM t1 INTO OUTFILE '/usr/share/mysql-test/bug50373.txt'' failed: 1086: File '/usr/share/mysql-test/bug50373.txt' already exists

The result from queries just before the failure was:

#

# Bug50373 --secure-file-priv=""

#

CREATE TABLE t1 (c1 VARCHAR(50));

INSERT INTO t1 VALUES ("one"),("two"),("three"),("four"),("five");

SHOW VARIABLES LIKE 'secure_file_priv';

Variable_name   Value

secure_file_priv

 - saving '/usr/share/mysql-test/var/log/sys_vars.secure_file_priv/' to '/usr/share/mysql-test/var/log/sys_vars.secure_file_priv/'

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The servers were restarted 1 times

Spent 0.002 of 9 seconds executing testcases

Failure: Failed 1/2 tests, 50.00% were successful.

Failing test(s): sys_vars.secure_file_priv