Add languages to live pass

The name of the pass is live and not "ubuntu-live" which is the live pass
default task.

live-build/auto/config

@@ -540,7 +540,7 @@ case $PROJECT in
 			*)
 				LIVE_TASK='ubuntu-live'
 				add_task install minimal standard ubuntu-desktop
-				add_task $LIVE_TASK ubuntu-desktop-minimal-default-languages ubuntu-desktop-default-languages
+				add_task live ubuntu-desktop-minimal-default-languages ubuntu-desktop-default-languages
 				case $ARCH in
 					amd64)	add_package live $SIGNED_KERNEL_PACKAGE ;;
 				esac