patch: sleep/nanosleep bug

[Eric Blake]

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According to Christopher Faylor on 12/16/2009 9:08 AM:
>> How about the following, then?  Same changelog.
> 
> It wonder if your while (!done) loop could be expressed as a for loop but
> it isn't enough of an issue to block inclusion of this patch.
> 
> So, thanks for the patch and please check in.  This will then go into 1.7.2.

Thanks; committed now.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             ebb9@byu.net
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