Updated mediawiki/extensions
Project: mediawiki/extensions/Oversight  9dc39f3f3dcc245b660fb113f4e6fd21c79474b1

Add dry-run mode to migrateToRevDel.php

Add dry-run mode (on by default) and clean up whitespace.

Change-Id: Ib2960014bd2833c491e099dcb500961b295ee852