ZSH - if choosen at first boot - tell user to logout / login

Executing shell from BASH can cause troubles ...

packages/bsp/common/usr/lib/armbian/armbian-firstlogin

@@ -287,6 +287,10 @@ if [[ -f /root/.not_logged_in_yet && -n $(tty) ]]; then
 	done
 	trap - INT TERM EXIT
 
+	if [[ ${USER_SHELL} == zsh ]]; then
+		printf "\nYou selected \e[0;91mZSH\x1B[0m as your default shell. If you want to use it right away, please logout and login! \n\n"
+	fi
+
 	# check whether desktop environment has to be considered
 	if [ -n "$desktop_lightdm" ] && [ -n "$RealName" ] ; then
 
@@ -325,6 +329,4 @@ if [[ -f /root/.not_logged_in_yet && -n $(tty) ]]; then
 		fi
 	fi
 
-	# Change root user to ZSH in case selected
-	[[ ${USER_SHELL} == zsh ]] && exec zsh
 fi