Fix blog post categories for 9.3.8 and 9.3.9 releases
9.3.8 and 9.3.9 used the incorrect "categories: security, releases" format. This fixes both.
Edited by Brian Neel
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
9.3.8 and 9.3.9 used the incorrect "categories: security, releases" format. This fixes both.