Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  5a58b12b7b3cfcb18dc303f7767449b56ef59873

Added No description message

'No description available' message has been added when description for the
given file is not available.

Bug: 56446
Change-Id: Ie239e5cd0d1b645ed149ea1ecc80197b0e84bc34