Disable nix num permission tests on Windows

Win ACLs are speficially tested for tested elsewhere. These tests will
always return something different than expected, as Win ACLs do not map
to nix permissions as the tests expect to. Mark all as unsupported.

While here, edit 010.cf missed in the fcdb6e commit, i.e. remove the 'g'
bundle and amend the execresult() to take a new script into account.