&$revert: string that is displayed in the UI, similar to $comment.
$time: timestamp of the log entry (added in 1.12)
+'LonelyPagesQuery': Allow extensions to modify the query used by
+Special:LonelyPages.
+&$tables: tables to join in the query
+&$conds: conditions for the query
+&$joinConds: join conditions for the query
+
'MaintenanceRefreshLinksInit': before executing the refreshLinks.php maintenance
script.
$refreshLinks: RefreshLinks object
&$tables: array of tables to be queried
&$join_conds: join conditions for the tables
&$fields: array of query fields
-$values: array of variables with watchlist options
+$opts: A FormOptions object with watchlist options for the current request
'SpecialWatchlistGetNonRevisionTypes': Called when building sql query for
SpecialWatchlist. Allows extensions to register custom values they have