Updated mediawiki/extensions
Project: mediawiki/extensions/WikimediaMessages  6ec95ebca118f657b1a9a31cf0835f9d84b818d0

Use the m interwiki prefix instead of metawikimedia

Follow up to I63f7192953fd90dbc9e6c72833b990fab98e200a .

Change-Id: I6875ff59a6a0ee5b3038a7199bdf90d2d73cee22