(#11155) Fix templates so they are ruby-1.9.2 compatible

The templates had #each methods being called on strings which is not ruby-1.9.2
compatible. Instead, I've converted the string to an array using a pattern that
is still compatible if an array is passed.

Author: kbarber

templates/ntp.conf.debian.erb

@@ -20,7 +20,7 @@ filegen clockstats file clockstats type day enable
 # pool: <http://www.pool.ntp.org/join.html>
 
 # Managed by puppet class { "ntp": servers => [ ... ] }
-<% servers_real.each do |server| -%>
+<% [servers_real].flatten.each do |server| -%>
 server <%= server %>
 <% end -%>
 

templates/ntp.conf.el.erb

@@ -16,7 +16,7 @@ restrict -6 ::1
 # Please consider joining the pool (http://www.pool.ntp.org/join.html).
 
 # Managed by puppet class { "ntp": servers => [ ... ] }
-<% servers_real.each do |server| -%>
+<% [servers_real].flatten.each do |server| -%>
 server <%= server %>
 <% end -%>