refac(function): move to local namespace

Author: minorOffense

README.md

@@ -365,7 +365,7 @@ facter -p letsencrypt_directory
 
 ## Puppet Functions
 
-This module profiles a custom puppet function `letsencrypt_lookup` which allows you to load information about your certificates into puppet.
+This module profiles a custom puppet function `letsencrypt::letsencrypt_lookup` which allows you to load information about your certificates into puppet.
 This returns the same information as in the facts but for a particular domain. It accepts a single argument for your domain or wildcard domain.
 
 ## Development

lib/puppet/functions/letsencrypt_lookup.rb renamed to lib/puppet/functions/letsencrypt/letsencrypt_lookup.rb

@@ -1,4 +1,4 @@
-Puppet::Functions.create_function(:letsencrypt_lookup) do
+Puppet::Functions.create_function(:'letsencrypt::letsencrypt_lookup') do
   def letsencrypt_lookup(cn)
     domain = cn.split('.', 2)[1]
     wildcard = "*.#{domain}"