shrink-revlog: add --sort option for user-selectable toposort algorithm.
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access log created - .hg/hgrc respected
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listening at http://localhost/ (bound to 127.0.0.1)
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% With --prefix foo
listening at http://localhost/foo/ (bound to 127.0.0.1)
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% With --prefix /foo
listening at http://localhost/foo/ (bound to 127.0.0.1)
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% With --prefix foo/
listening at http://localhost/foo/ (bound to 127.0.0.1)
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% With --prefix /foo/
listening at http://localhost/foo/ (bound to 127.0.0.1)
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