[BUG] inform user that directory variable ends with `/` and it has to be removed

[nyxnor]

Is your feature request related to a problem? Please describe.

I want to inform first, lets see if it is easy to do so, it is an error check at the beginning of the scripts with variable expansion.
the bug is that if folder contains trailing / at the end, the path to the file inside that folder will have two consecutive // which will fail.
Another option is auto correcting that.... but on the variable on the script itself, not altering the config file, this would be the optimal solution.

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Describe alternatives you've considered

Additional context

[nyxnor]

#!/usr/bin/env sh

var=/var/lib/tor/
#var=/var/lib/tor

echo "${var%*/}"

[nyxnor]

fixed on c1021e2 and further improvement in the event it was already inserted on the torrc 9b650ee