Reformat renovate.json.

Change-Id: I02eda963d4fa9ca1d87c5d4ce797e4968d5699cf
diff --git a/renovate.json b/renovate.json
index 7d2542b..f59f762 100644
--- a/renovate.json
+++ b/renovate.json
@@ -1,6 +1,3 @@
-{
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "local>benkard/.github:renovate-config"
-  ]
+{ "$schema": "https://docs.renovatebot.com/renovate-schema.json"
+, "extends": ["local>benkard/.github:renovate-config"]
 }