Make submodule check less verbose

Tools/check_submodules.sh

@@ -16,9 +16,8 @@ if [ -f $1"/.git" ];
 	then
 	SUBMODULE_STATUS=$(git submodule summary "$1")
 	STATUSRETVAL=$(echo $SUBMODULE_STATUS | grep -A20 -i "$1")
-	if [ -z "$STATUSRETVAL" ]; then
-		echo "Checked $1 submodule, correct version found"
-	else
+	if ! [[ -z "$STATUSRETVAL" ]];
+	then
 		echo -e "\033[31mChecked $1 submodule, ACTION REQUIRED:\033[0m"
 		echo ""
 		echo -e "Different commits:"