title: Terraform: invalid characters in heredoc anchor
body: <p>I am trying to use a multiline string in the <code>provisioner "remote-exec"</code> block of my terraform script.  Yet whenever I use the <code>EOT</code> syntax as outlined in the documentation and various examples I get an error that complains about having: <code>invalid characters in heredoc anchor</code>.</p>
  
  <p>Here is an example of a simple <code>provisioner "remote-exec"</code> that received this error (both types of EOT receive this error when attempted separately):</p>
  
  <pre><code>provisioner "remote-exec" {
    inline = [
      &lt;&lt; EOT 
      echo hi 
      EOT,
  
      &lt;&lt; EOT 
      echo \
      hi 
      EOT,
    ]
  }
  </code></pre>
  
  <p><strong>Update:</strong> Here is the working solution, read carefully if you are having this issue because terraform is very picky when it comes to EOF:</p>
  
  <pre><code>provisioner "remote-exec" {
    inline = [&lt;&lt;EOF
  
     echo foo
     echo bar
  
    EOF
    ]
  }
  </code></pre>
  
  <p>Note that if you want to use EOF all the commands you use in a <code>provisioner "remote-exec"</code> block must be inside the EOF.  You cannot have both EOF and non EOF its one or the other.</p>
  
  <p>The first line of EOF must begin like this, and you cannot have any whitespace in this line after <code>&lt;&lt;EOF</code> or else it will complain about having <code>invalid characters in heredoc anchor</code>:</p>
  
  <pre><code>  inline = [&lt;&lt;EOF
  </code></pre>
  
  <p>Your EOF must then end like this with the <code>EOF</code> at the same indentation as the <code>]</code></p>
  
  <pre><code>  EOF
    ]
  </code></pre>