donice
void donice(Char **, struct command *);
{ "nice", donice, 0, INF },
error = donice(l, p, SCARG(uap, prio));
error = donice(l, p, SCARG(uap, prio));
error = donice(l, p, SCARG(uap, prio));
static int donice(struct lwp *, struct proc *, int);
errs += donice(which, who, prio, incr);
static int donice(int, id_t, int, int);