The authorised values OPAC_SUG displayed at the OPAC show the staff
description.
Test plan:
1. Create an auth value in opac_sug, with different text for the description and OPAC description.
2. Go to the OPAC and open the purchase suggestion form.
3. Note in the Reason for purchase drop down, the descriptions appear, the text entered in the OPAC description field.
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com> Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net> Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>