Include item titles in fetch response

intake/app.py

@@ -16,6 +16,7 @@ from flask import (
     redirect,
     url_for,
     current_app,
+    make_response,
 )
 
 from intake.core import intake_data_dir
@@ -396,8 +397,11 @@ def fetch(source_name: str):
 
     try:
         items = fetch_items(source)
+        titles = "\n".join(item.display_title for item in items)
         update_items(source, items)
-        return f"Update returned {len(items)} items"
+        response = make_response(f"Update returned {len(items)} items:\n{titles}", 200)
+        response.mimetype = "text/plain"
+        return response
     except InvalidConfigException as ex:
         abort(500, f"Could not fetch {source_name}:\n{ex}")
     except SourceUpdateException as ex: