Bug 16215: Missing closing quote in checkout template

 Bug 16215: Missing closing quote in checkout template

This patch adds a missing closing quote to the circulation template.

To see the affect of this bug:

- Log in to Koha with an account which does not have the
  'force_checkout' permission.
- Locate a barcode which is checked out to a patron.
- Open a different patron account for checkout.
- Try to check out the barcode to that different patron.

You see a "Cannot check out" dialog which breaks the structure of the
rest of the page.

To test, apply the patch and repeat the steps above. The issue should be
fixed.

Signed-off-by: Hector Castro <hector.hecaxmmx@gmail.com>
Works as advertised

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>