Rather than an arbitrary election of hashing the xattr value with SHA1
to avoid leaking the value. By going with base64 encoding it allows for
the possibility of restoring a directory with the values stored in the
manifest.
Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
The FreeBSD flag `-l` is already used and has differing behavior, so
switch to not conflict
Reported-by: Aleksa Sarai <asarai@suse.de>
Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>