nspawn: x86 is special with its socketcall() semantics, be permissive in the seccomp setup
networkd: refactor link_add()                                                      :(

Don't set set **ret when returning r < 0, as matching on the errno may easily
give false positives in the future leading to null pointer dereference.

Reported-by: David Herrmann <dh.herrmann@gmail.com>
net-match: fix Driver= match

It should match on the driver of the parent device.
delta: add bash completion