Updated mediawiki/extensions
Project: mediawiki/extensions/SemanticWatchlist  efad0098bc11fefc7de7ce52ce058430c7c2dd64

Amending a system message

* Changed one system message as a result of an issue with singular support discovered by the tw.n community.

Change-Id: I16e6a83d675420a1f7d528a601243b3fdfc4232f