daemon-unix: include missing help information
These options have existed for a while, but were not expressed in the
help information.  Inform the user that these options exist, and give
some basic help.
Reported-by: Saravanan KR
@@ -537,6 +537,8 @@ daemon_usage(void)
printf(
"\nDaemon options:\n"
" --detach run in background as daemon\n"
+ " --monitor creates a process to monitor this daemon\n"
+ " --user=username[:group] changes the effective daemon user:group\n"
" --no-chdir do not chdir to '/'\n"
" --pidfile[=FILE] create pidfile (default: %s/%s.pid)\n"
" --overwrite-pidfile with --pidfile, start even if already "
