CI: Fix Appveyor printf format error

[tor.git] / changes / bug30011

  o Minor bugfixes (CI):
    - Terminate test-stem if it takes more than 9.5 minutes to run.
      (Travis terminates the job after 10 minutes of no output.)
      Diagnostic for 29437. Fixes bug 30011; bugfix on 0.3.5.4-alpha.