build-x86-images: enable the LXQt image by default.

build-x86-images.sh.in

@@ -7,7 +7,7 @@ while getopts "a:b:hr:" opt; do
 case $opt in
 	a) ARCH="$OPTARG";;
 	b) IMAGE="$OPTARG";;
-	h) echo "${0#/*}: [-a arch] [-b base|e|xfce|mate|cinnamon|kde|lxde] [-r repo]" >&2; exit 1;;
+	h) echo "${0#/*}: [-a arch] [-b base|e|xfce|mate|cinnamon|kde|lxde|lxqt] [-r repo]" >&2; exit 1;;
 	r) REPO="-r $OPTARG $REPO";;
 esac
 done
@@ -72,7 +72,7 @@ if [ -z "$IMAGE" -o "$IMAGE" = lxde ]; then
 		./mklive.sh -a $ARCH -o $LXDE_IMG -p "$LXDE_PKGS" $@
 	fi
 fi
-if [ "$IMAGE" = lxqt ]; then
+if [ -z "$IMAGE" -o "$IMAGE" = lxqt ]; then
 	if [ ! -e $LXQT_IMG ]; then
 		./mklive.sh -a $ARCH -o $LXQT_IMG -p "$LXQT_PKGS" $@
 	fi