Bug 28553: (QA follow-up) default to auto renew email when cron switched used

Bug 28553: (QA follow-up) default to auto renew email when cron switched used

This patch defaults to using "email" rather than "sms" notices
when AutoRenewalNotices is set to use the --send-notices cron switch

Signed-off-by: David Cook <dcook@prosentient.com.au>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 88f63e01d29917e9323c57be97aaa91b9e00fd92)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
(cherry picked from commit 681730ee1af9ad167f9526903eee6b6681d7d9ff)
Signed-off-by: Arthur Suzuki <arthur.suzuki@biblibre.com>