[Libguestfs] [nbdkit PATCH 0/3] sh plugin fixes

I'm pushing the first one as blatantly obvious. The second one is also simple enough, but not enough of a bug for me to push tonight. The third is something I noticed while working on sh, but is really more about docs vs. plugins in general. There, we could either change the code to match the docs (breaking backwards behavior for a plugin that set .errno_is_preserved=2) [what my patch did], or change the docs to match the code (mention that any non-zero value will do). Preference? Eric Blake (3): sh: Fix flags when none are present sh: Avoid setenv after fork plugins: Match docs for .errno_is_preserved docs/nbdkit-plugin.pod | 16 ++++++++++++++++ plugins/sh/call.c | 3 --- plugins/sh/sh.c | 8 ++++++++ server/plugins.c | 2 +- tests/test-shell.sh | 15 +++++++++++++++ 5 files changed, 40 insertions(+), 4 deletions(-) -- 2.20.1