Re: sys_un-h: Make sure that the 'sys' subdirectory is created.

[Bruno Haible via Gnulib discussion list]

Collin Funk wrote:
>     $ gnulib-tool --list  | grep -- '-h$' | xargs gnulib-tool \
>         --create-megatestdir --dir testdir-all
>     $ cd testdir-all && ./configure && make -j 4 V=0

That's an interesting test recipe :)

> Fixed with the attached patch.

Looks good. Thanks!

Bruno