add-variable-log-warnings cloudfoundry#224

Author: plafosse-orange

jobs/mysql/templates/my.cnf.erb

@@ -87,6 +87,7 @@ tmpdir                          = /var/vcap/data/mysql/tmp
 language                        = /var/vcap/packages/mariadb/share
 pid-file                        = /var/vcap/sys/run/mysql/mysql.pid
 log_error                       = /var/vcap/sys/log/mysql/mysql.err.log
+log_warnings                    = 2
 init_file                       = /var/vcap/jobs/mysql/config/mariadb_init
 skip_external_locking           = TRUE
 symbolic-links                  = OFF