Fixed typo

Author: deadhead420

lib/configure_system.sh

@@ -173,7 +173,7 @@ configure_system() {
 		pid=$! pri="0.1" msg="$wait_load \n\n \Z1> \Z2anarchy configure desktop\Zn" load
 
 		if [ "$DM" == "lightdm" ]; then
-			sed -i -e '$a\\ngreeter-session=slick-greeter' /etc/lightdm/lightdm.conf
+			sed -i -e '$a\\ngreeter-session=slick-greeter' "$ARCH"/etc/lightdm/lightdm.conf
 			cp "$aa_dir"/extra/desktop/lightdm/slick-greeter.conf "$ARCH"/etc/lightdm/
 		fi
 	fi