Matches https://github.com/ilyagr/pijul-clone as of now, might become out of sync

Fixing the error message for external commands

Created by  pmeunier  on December 7, 2020
EZ7VRNRLL7L7I54BPYG4Y4PR7VRFAQXPVHCHDB3MQI3IYAQEKXEAC
Change contents