Due to C4::Biblio moved to Koha::Biblio this script doesn't work anymore. Compilation failed in require at /home/vagrant/kohaclone/C4/Koha.pm line 26. BEGIN failed--compilation aborted at /home/vagrant/kohaclone/C4/Koha.pm line 26.
Not a bug, C4::Biblio and Koha::Biblio are two different things. Error were due to a permission issue (sry for that...).