min_fd            564 lib/common/io.c     int min_fd = (all? 0 : (STDERR_FILENO + 1));
min_fd            603 lib/common/io.c             if ((lpc >= min_fd) && (lpc <= max_fd) && (lpc != dir_fd)) {
min_fd            614 lib/common/io.c     for (int lpc = max_fd; lpc >= min_fd; lpc--) {