message: silence postcss warnings about from
diff: @@ -4,7 +4,9 @@ const stylefmt = require('stylefmt')
  const generate = require('../lib/postcss-plugin')
  postcss([generate, stylefmt])
  - .process(`/* THIS IS GENERATED. DO NOT EDIT IT! */`)
  + .process(`/* THIS IS GENERATED. DO NOT EDIT IT! */`, {
  + from: undefined
  + })
  .then(({css}) => {
  process.stdout.write(css)
  })
  