Fix host/hostname pgpool.conf bug

Author: jhunt

ci/release_notes.md

@@ -0,0 +1,6 @@
+## Bug Fixes
+
+- Fixed a bug in the template for pgpool that was redirecting all
+  traffic to the local postgres node, causing a less-than-HA
+  situation.  This is a pretty serious deficiency, so anyone using
+  this release should upgrade.

jobs/pgpool/templates/config/pgpool.conf

@@ -33,7 +33,7 @@ reset_query_list          = 'ABORT; DISCARD ALL'
 pool_passwd               = 'passwd'
 
 <% link("db").instances.each_with_index do |instance, i| %>
-backend_host<%= i %> = <%= val(instance.address) %>
+backend_hostname<%= i %> = <%= val(instance.address) %>
 backend_port<%= i %> = <%= val(p('pgpool.backend.port')) %>
 <% end %>