github.py: fix bug in main CLI function

The _json field was reworked as _items.

Co-authored-by: Mark Hiner <[email protected]>

Author: ctrueden

github.py

@@ -122,4 +122,4 @@ def _download_page(self, url, query):
     query = "+".join(sys.argv[1:])
     ghi = GitHubIssues()
     ghi.download(query)
-    print(json.dumps(ghi._json, sort_keys=True, indent=4))
+    print(json.dumps(ghi._items, sort_keys=True, indent=4))