[tor-bugs] #23157 [Core Tor/Tor]: prop224: Fix coverity reports generated by prop224 service merge (#20657)

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#23157: prop224: Fix coverity reports generated by prop224 service merge (#20657)
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     Reporter:  asn           |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.3.2.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:  tor-hs prop224 coverity
Actual Points:                |  Parent ID:
       Points:  0.3           |   Reviewer:
      Sponsor:  SponsorR-can  |
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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23157>
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