test-appliance: yet another file permissions fix

From: Eric Biggers <[email protected]>

Several directories in the kvm-xfstests appliance were still not being given the correct file permissions, since they were rsync'ed directly into the mounted root filesystem with the '-a' option. Unfortunately it seems we can't express "go+u-w" with rsync options (it's not accepted by --chmod), but we can copy the files through 'tar' instead, similar to what is done elsewhere.

(I didn't notice this earlier because it is kvm-xfstests specific, and it only broke a couple tests such as generic/128.)

---
 kvm-xfstests/test-appliance/gen-image | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

index 67f8c6b..dbd9b84 100755
@@ -111,7 +111,8 @@ fi
 update_xfstests()
 {
    tar -C $ROOTDIR/root -xf ../../xfstests.tar.gz
-   rsync --exclude-from kvm-exclude-files -avH files/* $ROOTDIR
+   tar -X kvm-exclude-files -C files \
+	--owner=root --group=root --mode=go+u-w -c . | tar -C $ROOTDIR -x
    rsync -avH ../../xfstests/git-versions $ROOTDIR/root/xfstests
    chown -R root:root $ROOTDIR/root
    chmod -R go+u-w $ROOTDIR/root

2.11.0.483.g087da7b7c-goog

Thanks, applied.

- Ted