Bug 14661: space needed in added to staff side cart message, if items added are alrea...

Bug 14661: space needed in added to staff side cart message, if items added are already in cart

There is a missing space in the "added to cart" message on the staff side, when you are adding 2 or more items to the cart, where 1+ is already in the cart and 1+ is not in the cart. I verified that this is not an issue in the OPAC cart function.

Test:

1. Search for records in your system.
2. In search results, select the first two records and choose Add to Cart.
3. Message returned, "2 item(s) added to your cart", as expected.
4. Keep those 2 records selected, and select 2 additional records (so 4 total records selected), and choose Add to Cart again.
5. Message returned, "2 item(s) added to your cart2 already in your cart".
6. Apply this patch
7. Repeat steps 1 through 4
8. Note the two phrases are on separate lines

Signed-off-by: Heather Braum <hbraum@nekls.org>
Signed-off-by: Joonas Kylmälä <j.kylmala@gmail.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@unc.edu.ar>