[tor-bugs] #19170 [Metrics/CollecTor]: make parsing more robust (extra-info)

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#19170: make parsing more robust (extra-info)
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 Reporter:  iwakeh             |          Owner:  iwakeh
     Type:  defect             |         Status:  new
 Priority:  Medium             |      Milestone:
Component:  Metrics/CollecTor  |        Version:
 Severity:  Normal             |     Resolution:
 Keywords:  ctip               |  Actual Points:
Parent ID:                     |         Points:
 Reviewer:                     |        Sponsor:
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Comment (by iwakeh):

 The weird characters show up in `dirreq-v3-ips` and `dirreq-v3-reqs`. When
 looking at a direct download e.g. retrieving extra/all directly from an
 authority, these are visible, too.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19170#comment:1>
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