Updated mediawiki/extensions
Project: mediawiki/extensions/WikimediaMessages  33bb09b45d325611fcab966aeaa77314b0f77e87
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Followup I6cddbdc6: Use protocol relative for creativecommons.org

Same as in the existing 'wikimedia-copyright' message

Change-Id: Ib60383e1384fe7bdf0f025ee9e9d0a692b717777