Mention the opengroup sed reference, add a check which is disabled at present.

[oweals/busybox.git] / testsuite / tar / tar-handles-multiple-X-options

touch foo
touch bar
tar cf foo.tar foo bar
echo foo > foo.exclude
echo bar > bar.exclude
rm foo bar
busybox tar xf foo.tar -X foo.exclude -X bar.exclude
test ! -f foo -a ! -f bar