Use str instead of strerror (not present)
Use str instead of strerror (not present)

See https://forum.yunohost.org/t/cant-create-a-user-after-post-intsallation/9190.

YunoHost/yunohost,YunoHost/yunohost,YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost,YunoHost/yunohost,YunoHost/yunohost,YunoHost/moulinette-yunohost