Sub::Exporter is an incredibly powerful module, but with that 
power comes great responsibility, as well as some runtime 
penalties. This module is a Sub::Exporter wrapper that will 
let your users just use Exporter if all they are doing is 
picking exports, but use Sub::Exporter if your users try to 
use Sub::Exporter's more advanced features features, 
like renaming exports, if they try to use them.

Note that this module will export @EXPORT, @EXPORT_OK and 
%EXPORT_TAGS package variables for Exporter to work. 
Additionally, if your package uses advanced Sub::Exporter 
features like currying, this module will only ever use 
Sub::Exporter, so you might as well use it directly.