Bug 15027: Correct Type in C4::Items perldoc

Bug 15027: Correct Type in C4::Items perldoc

As noted in the bug report, there is a typo.
This corrects that typo in documentation.

TEST PLAN
---------
1) perldoc C4::Items
2) Find GetItemsForInventory
   -- note that status is spelt incorrectly.
3) Apply patch
4) repeat steps 1-2
   -- note that status is spelt correctly now.
5) git diff origin/master
   -- note only that line changed.
6) run koha qa tools

Signed-off-by: Frederic Demians <f.demians@tamil.fr>
  This typo patch could hit the highway to master at high speeds.

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Amended patch: add a comma at the end of the line
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>