Because LangInstaller use FindBin to define some paths, the test
produces warnings about a missing directory. I'm not sure how we can
avoid that.
Test plan:
1. prove t/LangInstaller.t
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
