ncd: ncd.c: add option for stderr logger, and default to it instead of stdout
ncd: ncd.c: add option for stderr logger, and default to it instead of stdout

DavidCox1979/badvpn,DavidCox1979/badvpn,DavidCox1979/badvpn,DavidCox1979/badvpn,DavidCox1979/badvpn