Changed some non-standard Ruby locations to env ruby shebangs

examples/root/bin/sleeper

@@ -1,4 +1,4 @@
-#!/usr/bin/ruby -w
+#!/usr/bin/env ruby -w
 
 ###
 # sleep indefinitely as a debug

lib/puppet/external/nagios.rb

@@ -1,4 +1,4 @@
-#!/usr/local/bin/ruby -w
+#!/usr/bin/env ruby -w
 
 #--------------------
 # A script to retrieve hosts from ldap and create an importable