Bug 17411 - Change exit 1 to exit 0 in acqui/basket.pl to prevent Internal Server...

Bug 17411 - Change exit 1 to exit 0 in acqui/basket.pl to prevent Internal Server Error

Note: Same situation as in Bug 17403

To test:
- Verifiy that code change makes sense.

Note: Same situation as in Bug 17403
Signed-off-by: David Cook <dcook@prosentient.com.au>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Amended patch: Remove unecessary comment

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 01636dca2f1bd132fcc8d16f7a91fa4a45a90668)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>