[Portland] xdg-utils-1.0.1: sed -i option unknown on NetBSD

[Thomas Klausner]

Hi!

I tried running the selftests of xdg-utils-1.0.1 on NetBSD-4.99.6/amd64.
Many of them printed warnings because NetBSD's sed(1) does not
support the -i option. Could you please adapt the self tests (and/or
executables) for this?

Thanks,
 Thomas