fix outputting a null version

out

@@ -5,6 +5,8 @@ set -e
 
 cd "${1}"
 
+timestamp="$(jq -n "{version:{timestamp:\"$(date +%s)\"}}")"
+
 exec 3>&1
 exec 1>&2
 
@@ -44,4 +46,4 @@ echo "$compact_body" | jq 'del(..|nulls)' > /tmp/compact_body.json
 
 curl -v -X POST -T /tmp/compact_body.json -H "Content-Type: application/json" "${apprise_host}/notify/${apprise_key}"
 
-echo "{}" >&3
+echo "${timestamp}" >&3