rb_file_s_expand_path 1485 file.c dname = rb_file_s_expand_path(1, &dname);
rb_file_s_expand_path 2452 file.c fname = rb_file_s_expand_path(1, filep);
rb_file_s_expand_path 2503 file.c path = rb_file_s_expand_path(1, &path);