Fix general OVIS bridgehead runtime

lib/prepare-system.sh

@@ -81,7 +81,7 @@ case "$PROJECT" in
 		;;
 	*)
 		log ERROR "Internal error, this should not happen."
-		exit 1
+        exit 1
 		;;
 esac
 
@@ -118,3 +118,4 @@ chown -R bridgehead:docker /tmp/bridgehead /var/cache/bridgehead
 chmod -R g+wr /var/cache/bridgehead /tmp/bridgehead
 
 log INFO "System preparation is completed and configuration is present."
+