Hello, the xs compiler needs an extra , before ..., this is now fixed and seems to work on different versions (older and recent versions).
Version 6.13 final (22.12.2020)
Version 6.11 development (29.11.2019)
Version 6.10 final (15.08.2019)
Version 6.10 development (08.07.2019)
Version 6.08 final (19.03.2019)
Version 6.08 final (19.03.2019)
t/iban_gen.t fails on some systems (6.06)