pr_setrun
error = pr_setrun(pnp, argp->flags);
error = pr_setrun(pnp, (ulong_t)argp->flags);
extern int pr_setrun(prnode_t *, ulong_t);
error = pr_setrun(pnp, prmaprunflags(flags));
error = pr_setrun(pnp, prmaprunflags(flags));
int err = pr_setrun(pnp, 0);