namei: trivial fix to vfs_rename_dir comment

Looks like the directory loop check is actually done in renameat?
Whatever, leave this out rather than trying to keep it up to date with
the code.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
1 file changed