This commit forward ports 59c63ee0b2249c803c40f1eb19c0f6c062838bf1,
whose original log message follows:
- - -
While doing QA in https://github.com/ooni/probe/issues/1845, I
noticed we're not using the correct directory.
Results are written in the current directory inside of the OONI_HOME,
which is quite not what we want to happen.
This diff WILL require forward porting to master.