Bug 7295 (follow-up) replace simple-quoted string by double-quoted string

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>

koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basket.tt

@@ -143,7 +143,7 @@
             $("#basketusers_ids").val(ids.join(':'));
             var li = '<li id="user_'+borrowernumber+'">'+borrowername
                 + ' [<a style="cursor:pointer" onclick="del_basket_user('+borrowernumber+');">'
-                + _('Delete user') + '</a>]</li>';
+                + _("Delete user") + '</a>]</li>';
             $("#basketusers_names").append(li);
             return 0;
         }