refactor: log content before validation

lib/workers/repository/validate.js

@@ -47,12 +47,12 @@ async function validatePrs(config) {
           });
         }
         if (parsed) {
-          const { errors } = migrateAndValidate(
-            config,
+          const toValidate =
             file === 'package.json'
               ? parsed.renovate || parsed['renovate-config']
-              : parsed
-          );
+              : parsed;
+          logger.debug({ config: toValidate }, 'Validating config');
+          const { errors } = migrateAndValidate(config, toValidate);
           if (errors && errors.length) {
             validations = validations.concat(
               errors.map(error => ({