This fixes a failure on MSYS2 systems whereby I forgot to add a skip_if_cannot_trigger_file_permission_failure call to the "permissions don't change if directory already exists" test case.
Coverage remained the same at 95.048% when pulling 42658a9d1f2c65dd51fdae7c9eb017cea9046a0e on fix-fileutil-create-dirs-msys2 into cab450900d0d9232e992b9b435d68293ee57cb36 on master.
Coverage remained the same at 95.048% when pulling f08342a0e7ed1a3339f25b50a056a1bd356a57aa on fix-fileutil-create-dirs-msys2 into cab450900d0d9232e992b9b435d68293ee57cb36 on master.
This fixes a failure on MSYS2 systems whereby I forgot to add a
skip_if_cannot_trigger_file_permission_failure
call to the "permissions don't change if directory already exists" test case.