Fix drain script to actually stop mysql
#!/bin/bash -e
-/var/vcap/packages/mariadb/support-files/mysql.server stop > /dev/null
+/var/vcap/packages/mariadb/support-files/mysql.server stop --pid-file=/var/vcap/sys/run/mysql/mysql.pid > /dev/null
return_code=$?
echo 0
exit ${return_code}
