NTP: restrict keyword doubled in template

[YAmikep]

Hi,

I think you are aware of the NTP reflection attack since you included the restrict lines.
I used your NTP role as-is but my server has been attacked anyway.
After looking closely at the generated configuration, the restrict keyword is doubled.

The restrict keyword is used in the variable definition and in the template which leads to two restrict keyword when the template is generated. You should remove the restrict keyword in the variables.

restrict:
  - "restrict -4 default kod notrap nomodify nopeer noquery"
  - "restrict -6 default kod notrap nomodify nopeer noquery"
  - "restrict 127.0.0.1"

{% for i in restrict %}
restrict {{ i }}
{% endfor %}

Thanks