Fix File::stat's -x and -X for root for directories and executable files.

Previously File::stat's overloaded -x and -X operators did not give
the correct results for directories or executable files when running as
root. They had been treating executable permissions for root just like for
any other user, performing group membership tests etc. for files not owned
by root. They now follow the correct Unix behaviour - for a directory they
are always true, and for a file if any of the three execute permission bits
are set then they report that root can execute the file. Perl's builtin
-x and -X operators, added in Perl 2, have always been correct.

0 files changed, 0 insertions, 0 deletions