Keep optional dependencies in build.

evanvosberg · evanvosberg · commit db68377da292 · 2020-02-12T11:29:33.000+01:00
diff --git a/grunt/config/update_json.js b/grunt/config/update_json.js
@@ -19,7 +19,8 @@ module.exports = {
             'repository': null,
             'keywords': null,
             'main': null,
-            'dependencies': null
+            'dependencies': null,
+            'optionalDependencies': null
         }
     },
     bower: {
