[PATCH] xfstests: fix set-default test in btrfs/001

[David Sterba]

On Wed, Sep 18, 2013 at 04:48:27PM -0400, Josef Bacik wrote:
> We were actually testing this improperly, there was a bug in the set default
> code so we weren't actually honoring the 0 subvolid properly.  To fix this we
> need to get the subvolid for the subvol we want to set as the default and use
> that in the command.  With this patch we now pass again with the fix for the 0
> subvolid.  Thanks,
> 
> Signed-off-by: Josef Bacik <jbacik at fusionio.com>
Tested-by: David Sterba <dsterba at suse.cz>