Actually the su man page says:
SYNOPSIS
su [options] [-] [user|UID [argument...]]So one could argue that the acpi-support script's use of 'su "$XUSER" -s /bin/sh -c "..."' is buggy. 'su -s /bin/sh "$XUSER" -c "..."' works. However, the acpi-support scripts (/usr/share/acpi-support/screenblank and /etc/acpi/lid.sh, have not checked others) worked with previous versions of util-linux. Best Regards, Johannes
