转换含有注释的vue2模板时产生大量空行

[wangsongc]

Describe the bug
转换含有注释的vue2模板时产生大量空行

To Reproduce
Steps to reproduce the behavior.
input

<template>
  <div></div>
</template>

<script>
export default {
  
}
</script>
<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>

</style>

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots

Environment (please complete the following information):

• OS: [e.g. iOS]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.