FIX: Make rake site:export_structure export uploads (#13938)

FIX: Make rake site:export_structure export uploads (#13938)

It failed because of an undefined variable.

diff --git a/lib/tasks/site.rake b/lib/tasks/site.rake
index 4f168ad..87ac822 100644
--- a/lib/tasks/site.rake
+++ b/lib/tasks/site.rake
@@ -47,7 +47,7 @@ class ZippedSiteStructure
     puts "  - Exporting upload #{upload_or_id_or_url} to #{zip_path}"
     @zip.add(zip_path, local_path)
 
-    { filename: upload.original_filename, path: file_zip_path }
+    { filename: upload.original_filename, path: zip_path }
   end
 
   def get_upload(upload, opts = {})

GitHub sha: e2af2a22198d185242813fe11c66198e203a064f

This commit appears in #13938 which was approved by tgxworld. It was merged by nbianca.