main
various: attach errno to structured logs, even if not used in msg
imds: expose instance metadata as an io.systemd.Metrics provider
imds: use help-util.h helpers for --help output
Rename basic-forward.h, sd-forward.h, and shared-forward.h to forward.h
imds: add new systemd-imdsd.service that makes IMDS data accessible locally
imdsd: use free_many_charp() where appropriate
meson: rename extract+objects to export+import