Comment 2 for bug 1784023

If https://wiki.debian.org/UsrMerge is what we follow here then the libvirt rules for:
 /sbin/* PUx and /bin/* PUx are ok, they already have /usr/bin/* and /usr/sbin/* present.
(part of a very lenient profile I know)
They are also not part of the Ubuntu Delta, so we can leave those rules as-is.

More interesting are the lines in abstractions/libvirt-qemu
Those are of a powerpc specific delta we carry and refer to just /bin at the moment.
   /bin/uname rmix,
   /bin/grep rmix,
I guess if we'd convert those two on the next merge to
   /{usr/,}bin/uname rmix,
   /{usr/,}bin/grep rmix,
we will be safe for the usr merge and still very backward compatible.
I'll do that as part of the coming cosmic libvirt merge which is blocked by a few other things (so it will take a bit).
But I'll call this packages task triaged and assign it to me.