facebook/open-graph-protocol — pull request #6 by niallkennedy (2011-11-03 02:14:00+00:00)
Title: Change og:locale:alternate example markup to an array of meta elements

The og:locale:alternate property is defined as an array. Facebook's Object Debugger successfully parses content expressed as an array but fails to parse the comma-delimited string used in the current example.

Change the example markup to the proper array markup.