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specified, no changes are needed.

This means that from all module, we need to change:
	use Locale::Po4a::Common;
to:
	use Locale::Po4a::Common $_;

(It might be obvious that I did not test this at all ;)

If the idea is something like that, it seems good, and could be re-used
for other features.

> Any other idea?

Common is currently very command-line oriented.
It might be possible to create another Common.pm

It might also be possible to check if po4a is running on a terminal or
not. (I think it won't be when run by ikiwiki)

Cheers,
-- 
Nekral