Fix bundled header message for 'page-linked' notification
Fix bundled header message for 'page-linked' notification

Followup to Ie875f105230c8364291a918b869b9c26dbdf1e83

Bug: T121812
Change-Id: I43f2fca36e5c6e4b8a5ca03f2877095672aa082b

wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo,wikimedia/mediawiki-extensions-Echo