add hint

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>

tools/add_to_reprepro.sh

@@ -34,5 +34,9 @@ start_run () {
 	suite="noble" ; runner
 }
 
-start_run
+if [ ! -f /tmp/cron.lock ] ; then
+	start_run
+else
+	echo "reprepro running"
+fi
 #