Updated mediawiki/extensions
Project: mediawiki/extensions/CentralNotice  09599d70277bfda39c2dbeccdac77e59c40448fc

Show a friendly error page when requested banner does not exist

Make actually I4d61c700ced1001a380241d657ae0341f09ce371 work.

Bug: 54180
Change-Id: Ib1a770d7c9b56a045fa1b11104bd88e831d6931d