cmm: Add do-not-daemonize cmdline arg

We usually run daemons under the supervision of babysit instead of
having the daemon fork off into the background. Most daemons like
dropbear, ntpd and nmbd provide a cmdline option to prevent them for
daemonizing on startup. This change is about adding such a feature to
cmm. There appears to be no standard for naming such a cmdline option.
We decided for "-F" to be consistent with dropbear and nmbd.  It is a
bit more intuitive than dnsmasq's "-k".

Change-Id: Idc33f6449fe9aa837e625b82db3d98f4a9d9e772
2 files changed