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

Fixing a panic in `pijul change`

Created by  pmeunier  on December 8, 2020
A6R6SGCPLFM45QNWJLISFBR3EEXVITYHCWEUOPNH4UIGIWJRTZAQC
Change contents