policycoreutils: fixfiles: un-document `-R -a` option

`fixfiles -R -a` is much less useful than it was made to sound, because -R
now works recursively.  Therefore `fixfiles -R -a` relabels every file on
the system, multiple times.  On my system it took over 5 times as long as
plain `fixfiles` (which takes about a minute).

Signed-off-by: Alan Jenkins <alan.christopher.jenkins@gmail.com>
1 file changed