Thanks to deraadt for pointing out the -ls flag on find.

> Fix a very rare error condition:  The code to free VM back to the kernel
> as done after a quasi-recursive call to free() had modified what we
> thought we knew about the last chunk of pages.
> This bug manifested itself when I did a "make obj" from src/usr.sbin/lpr,
> then make would coredump in the lpd directory.

Remove unused variables
Silence some warnings
lint(1) is your friend

OS's, however, 1777 permissions will still be as safe as possible
under the circumstances.