Merge branch 'lw/daemon-log-destination' into next

The log from "git daemon" can be redirected with a new option; one
relevant use case is to send the log to standard error (instead of
syslog) when running it from inetd.

* lw/daemon-log-destination:
daemon: add --log-destination=(stderr|syslog|none)

diff --cc daemon.c
Simple merge