[Libguestfs] [PATCH nbdkit v2 0/4] tests: Test export flags (eflags).

[Richard W.M. Jones]

v1 was here:
https://www.redhat.com/archives/libguestfs/2018-December/thread.html#00123

v2:

 - Document "-" instead of "script=-" and use it in the test; and
   verify this also works on FreeBSD; and verify that it doesn't
   depend on the particular behaviour of our wrapper script and should
   work with installed nbdkit too.

 - Fix handling of zero flags parameter.

 - Add "to stdout" for can_fua.

 - "In future" -> "In the future," in various places.

 - Make the test work on FreeBSD by avoiding use of endian swaps.

 - Use socat "cool-write" to avoid occasional EPIPE error seen in tests.

 - Retest on Linux & FreeBSD.

 - Extra commit for a small documentation change in nbdkit-sh-plugin.

Rich.