o Minor bugfixes (circuit logging):
    - torspec says hop counts are 1-based, so fix two log messages
      that mistakenly logged 0-based hop counts.
      Closes ticket 18982, bugfix on 0275b6876 in tor 0.2.6.2-alpha
      and 907db008a in tor 0.2.4.5-alpha. Patch by teor.
      Credit to Xiaofan Li for reporting this issue.