`html-indent` reports false positive.

[ota-meshi]

Tell us about your environment

• ESLint version: 5.10.0
• eslint-plugin-vue version: 5.0.0
• Node version: 8.11.3

Please show your full configuration:

module.exports = {
  rules: {
    "vue/html-indent": ["error"]
  }

What did you do?

<template>
  <div>text
    <a/>
  </div>
  <div>text
    text
    <a/>
  </div>
  <div><a/>
    <a/>
  </div>

  <!-- when there is a line break before the first content -->
  <div>
    <a/>
    <a/>
  </div>
  <div>
    text
    <a/>
  </div>
  <div>
    text
    text
    <a/>
  </div>
</template>

What did you expect to happen?
I think there is no errors.

What actually happened?

If there is no line break before the first content, false positives are reported.

Expected indentation of 2 spaces but found 4 spaces. [vue/html-indent] (3, 1)
Expected indentation of 2 spaces but found 4 spaces. [vue/html-indent] (6, 1)
Expected indentation of 2 spaces but found 4 spaces. [vue/html-indent] (7, 1)
Expected indentation of 7 spaces but found 4 spaces. [vue/html-indent] (10, 1)

fixed: