- Add mariadb-10.1.22-xtradb_null_checks.patch (boo#1041525)
(See also https://jira.mariadb.org/browse/MDEV-12358)
- switch from '/var/run' to '/run' as /var/run is just a symlink to /run
- fix permissions for /var/run/mysql that were wrongly set to
700 instead of 755 due to added umask. This prevented non-root
from connecting to the database [bsc#1038740]
- change permissions of the configuration dir/files to 755/644.
Please note that storing the password in the /etc/my.cnf file is
not safe. Use for example an option file that is accessible only
by yourself [bsc#889126]
- set the default umask to 077 in mysql-systemd-helper [bsc#1020976]