Current HEAD is broken

[Hal Murray]

> Sorry. Fixed.  The new refclock test does not work well with no refclocks.

I fixed a few more sign-conversion warnings.  Please check.

On Fedora, all I see now are the 2 from the parser.

That was a 64 bit Fedora.  I get lots of them on a 32 bit system.
But not the parser errors.  :)


> I should not push late at night...

Why didn't buildbot catch that one?

Is it reasonable to tweak buildbot each time something sneaks through?

Is there a web page that describes buildbot?  If not, I'll make it if you 
feed me the info.



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