252eedb90d
instead of the uninitialized one $(DEVICE). I hoped these changes would fix some of the large runtime macro processing bugs, but they seem to only fix some small build-time macro substitution bugs. E.g., `man ms' now tells you to invoke groff with the flags `-ms' instead of the bogus flags `-m'; `man groff now tells you that the default device is `ps' instead of the bogus device `'.