[tor-bugs] #30893 [Core Tor/Tor]: Refactor and improve test coverage in confparse.c

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#30893: Refactor and improve test coverage in confparse.c
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     Reporter:  nickm          |      Owner:  nickm
         Type:  defect         |     Status:  assigned
     Priority:  Medium         |  Milestone:  Tor: 0.4.2.x-final
    Component:  Core Tor/Tor   |    Version:
     Severity:  Normal         |   Keywords:
Actual Points:  1              |  Parent ID:  #29211
       Points:  1              |   Reviewer:
      Sponsor:  Sponsor31-can  |
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 confparse.c is at around 81% coverage, which is not too bad, but since
 we're refactoring it, we should probably improve its coverage.

 As we do so, I'd like to remove unused configuration types, and rename the
 dubiously so called "UINT", which is really an `int` restricted to
 nonnegative values.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30893>
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