Description of problem:
When using guestmount to try backing up images once a snapshot has been taken (vmdk), We can't see any ACL in place

Version-Release number of selected component (if applicable):
libguestfs-1.20.11-8.el6.x86_64
libguestfs-debuginfo-1.20.11-8.el6.x86_64
libguestfs-devel-1.20.11-8.el6.x86_64
libguestfs-java-1.20.11-8.el6.x86_64
libguestfs-java-devel-1.20.11-8.el6.x86_64
libguestfs-javadoc-1.20.11-8.el6.x86_64
libguestfs-tools-1.20.11-8.el6.x86_64
libguestfs-tools-c-1.20.11-8.el6.x86_64
ocaml-libguestfs-1.20.11-8.el6.x86_64
ocaml-libguestfs-devel-1.20.11-8.el6.x86_64
perl-Sys-Guestfs-1.20.11-8.el6.x86_64
python-libguestfs-1.20.11-8.el6.x86_64
ruby-libguestfs-1.20.11-8.el6.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Mount vmdk with following command:

# guestmount -a guestname-flat.vmdk -i -m /dev/sda3:/:acl,user_xattr:ntfs --ro /mnt/vmdk

2. Check ACL with getfacl:
# cd /mnt/vmdk/
# ll
total 12
drwxrwxrwx 1 root root 4096 Aug 22  2012 ccmcache
drwxrwxrwx 1 root root 4096 Feb 21  2012 Logs
drwxrwxrwx 1 root root    0 May 29  2013 PerfLogs
drwxrwxrwx 1 root root 4096 May 23  2013 $RECYCLE.BIN
drwxrwxrwx 1 root root    0 Feb 22  2012 System Volume Information
drwxrwxrwx 1 root root    0 Jun 24 12:38 TestPerms

# getfacl TestPerms/
# file: TestPerms/
# owner: root
# group: root
user::rwx
group::rwx
other::rwx

Actual results:
No ACLs in place

Expected results:
Get the ACLs

Additional info:

The original reporter attached a disk image.  Since this contains
customer-sensitive information, this is available to
Red Hat associates only on private bug 1127220.