directory open on descriptor FD. If FLAG is AT_SYMLINK_NOFOLLOW, then
use lchown, otherwise, use chown. If possible, do it without changing
the working directory. Otherwise, resort to using save_cwd/fchdir,
- then mkdir/restore_cwd. If either the save_cwd or the restore_cwd
- fails, then give a diagnostic and exit nonzero. */
+ then (chown|lchown)/restore_cwd. If either the save_cwd or the
+ restore_cwd fails, then give a diagnostic and exit nonzero. */
#define AT_FUNC_NAME fchownat
#define AT_FUNC_F1 lchown