OSIS-668 Fix test_learning_unit_check_acronym
OSIS-668 Fix test_learning_unit_check_acronym

uclouvain/osis_louvain,uclouvain/osis,uclouvain/osis_louvain,uclouvain/osis_louvain,uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/OSIS-Louvain,uclouvain/osis