Don't use $this in hook description since it's a reserved word

diff --git a/docs/hooks.txt b/docs/hooks.txt
index 11414b1..1dce1f0 100644 (file)
--- a/docs/hooks.txt
+++ b/docs/hooks.txt
@@ -862,7 +862,7 @@ $linkType: The external link type
 &$tags: The list of tags.
 
 'LoadAllMessages': called by MessageCache::loadAllMessages() to load extensions messages
-&$this: The MessageCache object
+&$messageCache: The MessageCache object
 
 'LoadExtensionSchemaUpdates': called by maintenance/updaters.inc when upgrading database schema