REDIR_PUSH
!(flags & EV_EXIT) || have_traps() ? REDIR_PUSH : 0));
mode |= REDIR_PUSH;
mode = REDIR_PUSH | REDIR_KEEP;
redirect(n->nredir.redirect, REDIR_PUSH | REDIR_KEEP);
if (flags & REDIR_PUSH) {
if ((flags & REDIR_PUSH) && !is_renamed(sv->renamed, fd)) {