Prevent nmcli, setterm, and echo output from leaking to console and crontab output

setup/so-setup

@@ -118,7 +118,7 @@ if [ "$OS" == ubuntu ]; then
 	update-alternatives --set newt-palette /etc/newt/palette.original >> $setup_log 2>&1
 fi
 
-setterm -blank 0
+setterm -blank 0 > /dev/null
 
 if [ "$setup_type" == 'iso' ] || (whiptail_you_sure); then
 	true