fix: Use correct message type for Set (#64)
fix: Use correct message type for Set (#64)

In looking through the documentation and iproute2 code, `RTM_SETLINK`
seems to only be used in a handful of special cases, whereas `RTM_NEWLINK`
is used across the board for both new link creation as well as modification.

Signed-off-by: Brad Beam <2d3a4b465e0bbc3a3df8d8bdafa894eb387cadc4@talos-systems.com>
jsimonetti/rtnetlink