Logging

[Jason A. Donenfeld]

Hi JR,

Adding direct syslog support might make sense. I'll look into
integrating those files you sent, though, perhaps it'd be better if
you submitted those as a patch to the mailing list with a proper
Signed-off-by line? (Or even to Github?)

I'm curious to know: is there a reason why you prefer this to something like:

`LOG_LEVEL=debug wireguard-go -f wg0 2>&1 | logger &`

Jason