[Libguestfs] [PATCH nbdkit v2 follow-up 0/4] Miscellaneous fixes

[Richard W.M. Jones]

Follow-up to this patch:
https://listman.redhat.com/archives/libguestfs/2021-November/msg00251.html

Patches 1-3 are probably down to over-active warnings in the old
version of GCC.  Patch 3 in particular is bogus, but needed to get
around the warning.

Patch 4 moves the test so it's next to the header file being tested.

I don't mind if you squash these into your patch before pushing.

Rich.