option "priority" -
#~~~~~~~~~~~~~~~~~~
"adjust scheduling priority"
int typestr = "prio"
default = "0"
optional
details = "
	The priority (also known as nice value) is a value in the range -20
	to 19. Lower priorities cause more favorable scheduling. Since only
	privileged processes may request a negative priority, specifying
	a negative value works only if the daemon is started with root
	privileges.

	Failure to set the given priority value is not considered an error
	but a log message is printed in this case.
"