No support for carriage return

[loduis]

Vue.js version

2.0.0-rc.3

Steps to reproduce

<template lang="html">

  <h1>{{
    message
  }}</h1>

</template>

<script>
export default {
  data () {
    return {
      message: 'Message here.'
    }
  }
}
</script>

What is Expected?

Message here.

What is actually happening?

{{ message }}