Puppet users - Feb 2014 - Ordering in each_pair

Hi,

I have read about the known "feature" of ruby 1.8.7 not using the
entered
order for each_pair and using some random order instead,  has anyone 
managed a work around for this that does not mean having to upgrade to 
1.9.3 

I have hiera data that looks something like this

my::variables:
   "variable1":
        comment: '# this is a variable comment'
        value:  '100'
   "variable2":
        comment: '# this is a variable comment'
        value:  '200'
   "variable3":
        comment: '# this is a variable comment'
        value:  '300'

in my template i have

<% @vars.sort.each_list do |varname, hash | -%>
<%= hash['comment'] %>
<%= varname %> = <%= hash['value'] %>
<% end -%>

i wanted them to come out like the following but they come out in a random 
order so nearly every puppet run could cause a change and restart a service

# this is a variable comment
variable1 = 100
# this is a variable comment
variable2 = 200
# this is a variable comment
variable3 = 300

any ideas

cheers
Simon



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