Revision history of "type of test case of unimplemented function is Z20" (Z16852)

Ad seligendas differentias nota diversarum redactionum bullas et agi iube!
Legenda: (nov) = differentiam monstrabit inter hanc et novissimam redactionem, (prox) = differentiam monstrabit inter hanc et superiorem redactionem, (m) = recensio minor.