donice
void donice(Char **, struct command *);
{ "nice", donice, 0, INF },
error = donice(curp, pr, SCARG(uap, prio));
error = donice(curp, pr, SCARG(uap, prio));
error = donice(curp, pr, SCARG(uap, prio));
int donice(struct proc *, struct process *, int);