Hi, I'm using this system:
$ guix describe Generación 1 06 may 2019 11:29:00 (actual) guix d6a68e9 URL del repositorio: https://git.savannah.gnu.org/git/guix.git rama: master revisión: d6a68e90483b35bdc2ea78afe2c81873be67ec95 After running "guix package --roll-back" in a system with a Spanish locale (es_CO.UTF-8), I see that the output is missing a line break, so the prompt appears immediately after the output: ########## $ guix package --roll-back se pasó de la generación 48 a la 47.sirgazil@makine ~/Escritorio$ guix package -I ########## It should look like this instead: ########## $ guix package --roll-back se pasó de la generación 48 a la 47. sirgazil@makine ~/Escritorio$ guix package -I ########## I didn't test if the issue actually depends on the locale. --- https://sirgazil.bitbucket.io/