yui/yui3 — comment on commit a7e9ca67d735ae1bcdc1f7deb35ab98dd9c9f614
File: src/button/meta/button.json line 11
By derek:

Without requiring 'plugin' you get:
`
supplier is undefined
sProto = supplier.prototype, oop.js (line 72)
`
Which is from

`return Y.one(node).plug(Y.Plugin.Button, config);`