suspend-utils: support for UUID

Hi,

what do you think about to implement UUID support for suspend-utils?

Now, suspend-utils try to open the file specified in the configuration file:

http://git.kernel.org/cgit/linux/kernel/git/rafael/suspend-utils.git/tree/suspend.c#n2417

If the config file contains a file, no problem, suspend can open it. But if we set "UUID=xyz", is not a file and suspend fails.

What do you think is the better way to include this support?

Thanks a lot,
kix.

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