fts_sort
root = fts_sort(sp, root, nitems);
static FTSENT *fts_sort(FTS *, FTSENT *, int);
head = fts_sort(sp, head, nitems);
root = fts_sort(sp, root, nitems);
static FTSENT11 *fts_sort(FTS11 *, FTSENT11 *, size_t);
head = fts_sort(sp, head, nitems);
root = fts_sort(sp, root, nitems);
static FTSENT *fts_sort(FTS *, FTSENT *, size_t);
head = fts_sort(sp, head, nitems);