[sheepdog] [PATCH] add early test for xattr support

[Liu Yuan]

On 07/19/2012 04:15 PM, Dietmar Maurer wrote:
> BTW, the current code swallows most error messages at startup, because daemon() closes stderr.

So this need to be fixed, these messages should be printed in fd or in
logger. Either way, we don't lose any message.

Thanks,
Yuan