[tor-bugs] #28880 [Core Tor/Tor]: Fix a few scan-build warnings in the unit tests

[Tor Bug Tracker & Wiki]

#28880: Fix a few scan-build warnings in the unit tests
------------------------------+--------------------------------
     Reporter:  nickm         |      Owner:  nickm
         Type:  defect        |     Status:  assigned
     Priority:  Medium        |  Milestone:  Tor: 0.4.0.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:  0             |   Reviewer:
      Sponsor:                |
------------------------------+--------------------------------
 None of these are actually reachable now, but it would be nice to silence
 them.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28880>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online