Bug 13676 - OpacSuppression description says 'items' but means 'records'

Bug 13676 - OpacSuppression description says 'items' but means 'records'

This patch changes the wording for the OpacSuppression preference description.

Without patch:
... items marked as suppressed from OPAC search results. Note that you must have the <code>Suppress</code> index set up in Zebra and at least one suppressed item, or your searches will be broken. ...

With patch:
... items marked as suppressed from OPAC search results. Note that you must have the <code>Suppress</code> index set up in Zebra and at least one suppressed biblio record, or your searches will be broken. ...

Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>