add setting for short names to workaround Windows problem #30

Job	Run time
Automated testing (8.0, MOODLE_401_STABLE, mariadb)	59s
Automated testing (8.0, MOODLE_401_STABLE, pgsql)	59s
Automated testing (8.0, MOODLE_402_STABLE, mariadb)	1m 0s
Automated testing (8.0, MOODLE_402_STABLE, pgsql)	58s
Automated testing (8.0, MOODLE_403_STABLE, mariadb)	50s
Automated testing (8.0, MOODLE_403_STABLE, pgsql)	1m 8s
Automated testing (8.1, MOODLE_401_STABLE, mariadb)	56s
Automated testing (8.1, MOODLE_401_STABLE, pgsql)	56s
Automated testing (8.1, MOODLE_402_STABLE, mariadb)	58s
Automated testing (8.1, MOODLE_402_STABLE, pgsql)	57s
Automated testing (8.1, MOODLE_403_STABLE, mariadb)	52s
Automated testing (8.1, MOODLE_403_STABLE, pgsql)	56s
Automated testing (8.1, MOODLE_404_STABLE, mariadb)	1m 20s
Automated testing (8.1, MOODLE_404_STABLE, pgsql)	1m 28s
Automated testing (8.1, main, mariadb)	1m 7s
Automated testing (8.1, main, pgsql)	1m 10s
Automated testing (8.2, MOODLE_402_STABLE, mariadb)	56s
Automated testing (8.2, MOODLE_402_STABLE, pgsql)	1m 21s
Automated testing (8.2, MOODLE_403_STABLE, mariadb)	53s
Automated testing (8.2, MOODLE_403_STABLE, pgsql)	1m 4s
Automated testing (8.2, MOODLE_404_STABLE, mariadb)	1m 1s
Automated testing (8.2, MOODLE_404_STABLE, pgsql)	1m 7s
Automated testing (8.2, main, mariadb)	58s
Automated testing (8.2, main, pgsql)	1m 7s
Automated testing (8.3, MOODLE_404_STABLE, mariadb)	55s
Automated testing (8.3, MOODLE_404_STABLE, pgsql)	57s
Automated testing (8.3, main, mariadb)	59s
Automated testing (8.3, main, pgsql)	1m 3s
	28m 55s

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