Bug 14014 - Argument "" isn't numeric in numeric gt (>) in circulation.tt

Bug 14014 - Argument "" isn't numeric in numeric gt (>) in circulation.tt

To test:

Do some checkouts
In intranet-error.log you get lines similar to:
circulation.pl: Argument "" isn't numeric in numeric gt (>) at /usr/share/kohaclone/koha-tmpl/intranet-tmpl/prog/en/modules/circ/circulation.tt line 217.

Apply patch
The warning  should no longer appear.

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
To reproduce the confirmation message must be displayed.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
(cherry picked from commit 54469a1b4ca61123a58998f1097792b9a86563dc)
Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>