update META.yml to spec v1.4
authorMischa POSLAWSKY <perl@shiar.org>
Thu, 15 Dec 2011 21:41:26 +0000 (22:41 +0100)
committerMischa POSLAWSKY <perl@shiar.org>
Thu, 15 Dec 2011 21:55:30 +0000 (22:55 +0100)
Recent Test::YAML::Meta does not allow a valid optional_features array
according to v1.3 spec, instead requiring v1.4 syntax regardless of version:

> ERR: Expected a map structure from YAML string or file (optional_features)
> [Validation: 1.3]


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