dont print config diff when writing new config file

especially when using bindpw this should not be printed in plaintext
also when bindpw will printed in plaintext, this will be stored plaintext in the report

manifests/config.pp

@@ -11,6 +11,7 @@ class nslcd::config inherits nslcd
       owner     => $nslcd::config_user,
       group     => $nslcd::config_group,
       mode      => $nslcd::config_mode,
+      show_diff => false
       content   => template('nslcd/nslcd.erb'),
   }
 }