Function to_yaml in erb templates creates one additional indent

If you have the following statement in your erb template:

<%= {"key1"=>"value1", "key2"=>"value2"}.to_yaml %>

The output produced by Puppet is (Please note the indents on each line of the "data" block):

---

  key1: value1

  key2: value2

But it should be:

---

key1: value1

key2: value2

irb creates the expected output. A quick and ugly fix is:

<%= {"key1"=>"value1", "key2"=>"value2"}.to_yaml.gsub(/^\s{2}/, '') %>

This command removes the additional indents, but this approach is not a feasible solution.

Please fix the issue. It was first discussed here:
http://stackoverflow.com/questions/25404774/unexpected-indent-in-puppets-erb-template-output