Bug 28327: (follow-up) Comma as default CSV delimiter

Bug 28327: (follow-up) Comma as default CSV delimiter

Looks like most of existing code wants comma as default value.

Also impact installer/data/mysql/mandatory/sysprefs.sql.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 7b645b0208182520d91ff370b6a4e5b79549d2e0)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
(cherry picked from commit 4cf509b2480935286ce93fc36b7235c72ab203d2)
Signed-off-by: Arthur Suzuki <arthur.suzuki@biblibre.com>