Fix puppetdb-env.erb so we don't get stripped carriage returns

The use of <%= @name -%> here is erroneous and truncates the trailing carriage
return thus returning an error when the script is evaluated.

This patch changes it to use <%= @name %> which does not strip the carriage
return.

Signed-off-by: Ken Barber <ken@bob.sh>
Merge pull request #868 from kbarber/maint/master/fix-env-template-no-cr

Fix puppetdb-env.erb so we don't get stripped carriage returns