Fix mariadb logrotate.

User (with enough privileges) must be supplied, otherwise logs are never
reopened.
Also, quote socket and binary paths.

stack/erp5/buildout.cfg

@@ -186,7 +186,7 @@ context =
 [template-mariadb]
 < = download-base
 filename = instance-mariadb.cfg.in
-md5sum = 0e67f6d8b7de909be1324c680cabe8f0
+md5sum = ed3ca668c8b3c4729bf3e1b986c14b5a
 
 [template-zope]
 < = download-base

stack/erp5/instance-mariadb.cfg.in

@@ -118,7 +118,7 @@ state-file = ${rootdirectory:srv}/logrotate.status
 recipe = slapos.cookbook:logrotate.d
 name = mariadb
 log = ${mariadb-instance:error-log} ${mariadb-instance:slow-query-log}
-post = ${mariadb-instance:mysql-binary} --no-defaults -B --socket=${mariadb-instance:socket} -e "FLUSH LOGS"
+post = "${mariadb-instance:mysql-binary}" --no-defaults -B --socket="${mariadb-instance:socket}" -u root -e "FLUSH LOGS"
 
 [cron]
 recipe = slapos.cookbook:cron