[ostree] test-xattrs: Skip if current FS doesn't support user_xattr

[Colin Walters <walters src gnome org>]

commit f68ac018c29d43a2af140ad3f52c415c708f60f5
Author: Colin Walters <walters verbum org>
Date:   Wed Aug 14 20:46:46 2013 +0200

    test-xattrs: Skip if current FS doesn't support user_xattr
    
    tmpfs doesn't =(

 tests/test-xattrs.sh |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/tests/test-xattrs.sh b/tests/test-xattrs.sh
index d0173da..6c19592 100755
--- a/tests/test-xattrs.sh
+++ b/tests/test-xattrs.sh
@@ -19,6 +19,11 @@
 
 set -e
 
+touch test-xattrs
+if ! setfattr -n user.testvalue -v somevalue test-xattrs; then
+    exit 77
+fi
+
 echo "1..2"
 
 . $(dirname $0)/libtest.sh