hgweb: fix unbundle. After the WSGI changes, even if a push over HTTP succeeds, apache complains about "Premature end of script headers: hgwebdir.cgi" and returns a "HTTP Error 500: Internal Server Error", making the local hg abort. The change to either of the files touched by this patch is enough to fix this, but I think changing both is a more robust solution.

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changeset = '{rev}{tags}{parents}   {node|short}   {date|isodate}   {author|user}\n  {desc|firstline|strip}\n\n'

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changeset_quiet = '{rev}:{node|short}\n'

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start_tags = '['

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tag = '{tag},'

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last_tag = '{tag}]'

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start_parents = ':'

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parent = '{rev},'

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last_parent = '{rev}'