Bug 17770: Improve perlcritic level

Bug 17770: Improve perlcritic level

before patch: perlcritic -4 noisy
after patch: perlcritic -4 ok

Signed-off-by: Your Full Name <your_email>
Signed-off-by: Jon Knight <J.P.Knight@lboro.ac.uk>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
(cherry picked from commit cba47ec34769220a58e87cd801a25fabd774b720)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>