vtputs
vtputs(bf, wp);
int vtputs(const char *, struct mgwin *);
n += vtputs("Mg: ", wp);
n += vtputs(&(bp->b_bname[0]), wp);
n += vtputs(bp->b_modes[md]->p_name, wp);
n += vtputs("-def", wp);
n += vtputs("-gwd", wp);
n += vtputs(sl, wp);