H_LOAD
history(hist, &he, H_LOAD, file);
history(hist, &ev, H_LOAD, av[2]);
history_w(hist, &ev, H_LOAD, hfile);
history_w(hist, &ev, H_LOAD,
#define HIST_LOAD(el, fname) HIST_FUN(el, H_LOAD fname)
case H_LOAD:
if (history(h, &ev, H_LOAD, filename) == -1)