[Libguestfs] Remaining patches for the Debian package

[Hilko Bengen]

Right now I am building 1.20.4-1 right now for Debian/unstable. I am
happy that my patch queue for the package is down to the six patches:

1/6: Make sure that /run exists. I'm not really sure where this needs
     to be fixed. Gut feeling says: supermin helper.

2/6: TBH, I don't remember what systemd-related symptom was fixed by
     this patch.

3/6: This one has been rejected, more than once, I believe. This is
     the only patch that's needed for out-of-tree builds that I'm
     currently aware of. Unfortunately, I haven't found a better way
     yet to build and test the Perl bindings out-of-tree.

4/6: Ruby sitelibdir, sitearchdir point to /usr/local/lib/site_ruby/*
     on Debian. I suppose this should not be picked up upstream
     because the site-local directory is exactly the place one should
     be installing to when not using a packaging system. At the same
     time, I wonder if there's a better way to specify/override this.

5/6: With multiarch enabled, ${libdir}/guestfs translates to
     /usr/lib/x86_64-linux-gnu/guestfs on amd64 systems. This patch
     makes sure that the guestfs appliance stays in /usr/liba

6/6: same multiarch fix for Erlang bindings