Updates chef cookbook agent conf yaml templating.
# Automatically generated by Chef
-<% node['signalfx_agent']['conf'].sort.each do |key, value| %>
-<%= key %>: <%= value.to_json %>
-<% end %>
+<% require 'yaml' %>
+<% conf = node['signalfx_agent']['conf'].to_hash %>
+<%= conf.to_yaml %>
