Mirror image - aptly-add-packages.ah typo fix

Change-Id: If4fa594b09c7b3c4a344e5822c30f4e3ac10c091
diff --git a/mirror-image/aptly-add-packages.sh b/mirror-image/aptly-add-packages.sh
index 2483526..ea93aa0 100755
--- a/mirror-image/aptly-add-packages.sh
+++ b/mirror-image/aptly-add-packages.sh
@@ -27,4 +27,4 @@
 
 exit 0
 
-__PAYLOAD_BELOW__
\ No newline at end of file
+__PAYLOAD_BELOW__